Perhaps you should try some spelling variations:
thanh gia » thanh gian, thanh giang, thanh nghia
va thanh » gia thanh, ban thanh, va tinh
hieu van » thien van, lieu va, hieu ve
te sach » toc sach
hieu va » lieu va, hieu qua
gia cuc » gia muc, gia duc, gia suc
cam tuc » cam xuc, cam tu, nam thuc
cuc tre » duc tre, cua tre, cuu tre
nang xa » nang x, lang xa, nang ma
so sanh » do sanh
tuc va » thuc va, truc va, tuc xa

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) or (so sanh)) ky nang xa hoi. ((hieu van) or (hieu va)) cam tuc va thanh gia cuc tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((te sach) OR (so sanh)) ky nang xa hoi. ((hieu van) OR (hieu va)) cam tuc va thanh gia cuc tre.
• Adding a wildcard symbol may retrieve word variants: ((te sach) or (so sanh)) ky nang xa hoi. ((hieu van) or (hieu va)) cam tuc va thanh gia cuc tre*.