Perhaps you should try some spelling variations:
nham thuc » nhan thuc, nam thuc, nham thu
thuc day » thuc dan, thuc vat
hanh tai » thanh tai, hang tai, han tai
hanh dai » hanh dao, vanh dai, thanh dat
hieu van » hieu va, thien van, lieu va
van nham » van nam, van nhan, van tham
su sach » so sach, vu sach
nang xa » nang x, lang xa, nang ma
te sach » toc sach
cua te » cua tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((su sach) or (te sach)) ky nang xa hoi. hieu van nham thuc day ((hanh dai) or (hanh tai)) cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sach) OR (te sach)) ky nang xa hoi. hieu van nham thuc day ((hanh dai) OR (hanh tai)) cua te.
• Adding a wildcard symbol may retrieve word variants: ((su sach) or (te sach)) ky nang xa hoi. hieu van nham thuc day ((hanh dai) or (hanh tai)) cua te*.