Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
ban hanh » ban hang
vu khac » vu kham, vu khanh, bui khac
khac tu » khac tung, khac tuoi, khac hau
qua cai » qua hai, qua cac, qua ca
cai luc » cau luc, dai luoc
van anh » van thanh, tuan anh, van minh
cuu tre » cua tre, cau tren, cau treo
tu ang » tu lang, tu anc, tu anh
ang xa » lang xa, mang xa, dang xay

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: vu khac tu ang xa hoi. hieu qua cai luc ((van anh) or (ban hanh)) tri ((cua triet) or (cuu tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu khac tu ang xa hoi. hieu qua cai luc ((van anh) OR (ban hanh)) tri ((cua triet) OR (cuu tre)).
• Adding a wildcard symbol may retrieve word variants: vu khac tu ang xa hoi. hieu qua cai luc ((van anh) or (ban hanh)) tri ((cua triet) or (cuu tre))*.