Perhaps you should try some spelling variations:
"materi pokok :adne 4111/3 sks/modul 1-9" » "materi pokok :adne 4110/3 sks/modul 1-9", "materi pokok :adne 4213/3 sks/modul 1-9", "materi pokok :adne 4130/3 sks/modul 1-9", "materi pokok :adne 4111/3 sks/model 1-9"
"materi pokok :adni 4110/3 sks/modal 1-9" » "materi pokok :adni 4110/3 sks/modal 10-9", "materi pokok :adni 4110/3 sks/modal 0-9", "materi pokok :adni 4110/3 sks/modal 2-9"

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (("materi pokok :adne 4111/3 sks/modul 1-9") or ("materi pokok :adni 4110/3 sks/modal 1-9"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("materi pokok :adne 4111/3 sks/modul 1-9") OR ("materi pokok :adni 4110/3 sks/modal 1-9")).
• Removing quotes may allow a broader search: (( materi pokok :adne 4111/3 sks/modul 1-9 ) or ( materi pokok :adni 4110/3 sks/modal 1-9 )).
• Adding a wildcard symbol may retrieve word variants: (("materi pokok :adne 4111/3 sks/modul 1-9") or ("materi pokok :adni 4110/3 sks/modal 1-9"))*.