Perhaps you should try some spelling variations:
doan van » hoang van, luan van, tran van
nang xa » nang x, lang xa, nang ma
hieu ve » hieu va, hieu van
cau tuc » cau truc, cau tu, cau luc
cuu tre » cua tre, cau tren, cau treo
ve cau » ke cau, va cau, ve cac
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: tu cac ky nang xa hoi. hieu ve cau tuc va ((doan van) or (doan va)) cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu cac ky nang xa hoi. hieu ve cau tuc va ((doan van) OR (doan va)) cuu tre.
• Adding a wildcard symbol may retrieve word variants: tu cac ky nang xa hoi. hieu ve cau tuc va ((doan van) or (doan va)) cuu tre*.