Perhaps you should try some spelling variations:
tan thanh » tran thanh, tang thanh, toan thanh
cua thuoc » nha thuoc, cay thuoc, cua nuoc
thanh vi » hanh vi, thanh va, thanh ve
te sach » toc sach
sach tu » sach thu, cach tu, sach ty
tu nang » tru nang, tu nong, tu nano
nang xa » nang x, lang xa, nang ma
hieu ve » hieu va, hieu van
cac duc » cac du, cao duc, cac dac
cua tuc » cua duc, luat tuc, cua nuoc
ve cac » va cac, vien cac
cua tu » cua su, cua cu, cua te

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 tu nang xa hoi. hieu ve cac duc tan thanh vi ((cua tu) or (((cua tuc) or (cua thuoc))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach tu nang xa hoi. hieu ve cac duc tan thanh vi ((cua tu) OR (((cua tuc) OR (cua thuoc)))).
• Adding a wildcard symbol may retrieve word variants: te sach tu nang xa hoi. hieu ve cac duc tan thanh vi ((cua tu) or (((cua tuc) or (cua thuoc))))*.