Perhaps you should try some spelling variations:
hanh tai » thanh tai, hang tai, han tai
duc minh » duc anh
hanh dai » hanh dao, vanh dai, thanh dat
te sach » toc sach
vu nang » vuc nang, va nang, vu dang
mai hoi » mai khoi, dai hoi, lai hoi
hieu ve » hieu va, hieu van
sach vu » sach va, sach tu, sach uu
cac duc » cac du, cao duc, cac dac
ve cac » va cac, vien cac
cua tu » cua tuc, cua su, cua cu

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach vu nang ((xa hoi) or (mai hoi)). hieu ve cac duc minh ((hanh dai) or (hanh tai)) cua tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach vu nang ((xa hoi) OR (mai hoi)). hieu ve cac duc minh ((hanh dai) OR (hanh tai)) cua tu.
• Adding a wildcard symbol may retrieve word variants: te sach vu nang ((xa hoi) or (mai hoi)). hieu ve cac duc minh ((hanh dai) or (hanh tai)) cua tu*.