Perhaps you should try some spelling variations:
thanh dai » thanh hai, thanh tai, thanh dat
hieu van » thien van, lieu va, hieu ve
va thanh » gia thanh, ban thanh, va tinh
thu sai » thu hai, thu tai, thu san
nang xa » nang x, lang xa, nang ma
hieu va » lieu va, hieu qua
dau tuc » dau tu, dao tuc, cau truc
cua tre » cua te, cuu tre, cua triet
sai ky » sac ky
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: thu sai ky nang xa hoi. ((hieu van) or (hieu va)) dau tuc va thanh dai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sai ky nang xa hoi. ((hieu van) OR (hieu va)) dau tuc va thanh dai cua tre.
• Adding a wildcard symbol may retrieve word variants: thu sai ky nang xa hoi. ((hieu van) or (hieu va)) dau tuc va thanh dai cua tre*.