Perhaps you should try some spelling variations:
thanh vai » thanh hai, thanh van, thanh tai
sach dao » lanh dao
dao nang » cao nang, da nang, dai nang
hieu van » thien van, lieu va, hieu ve
nang tuc » nang thuc, nang luc, nang tu
xa thanh » va thanh, ha thanh, ta thanh
so sach » so sanh, bo sach, co sach
nang xa » nang x, lang xa, nang ma
hieu va » lieu va, hieu qua
cua tre » cuu tre, cua triet, dua tren
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: so sach dao nang xa hoi. ((hieu van) or (hieu va)) nang tuc xa thanh vai ((cua tre) or (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach dao nang xa hoi. ((hieu van) OR (hieu va)) nang tuc xa thanh vai ((cua tre) OR (cua te)).
• Adding a wildcard symbol may retrieve word variants: so sach dao nang xa hoi. ((hieu van) or (hieu va)) nang tuc xa thanh vai ((cua tre) or (cua te))*.