Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
van hanh » van thanh, van anh, van ban
ban hanh » ban hang
vu khac » vu kham, vu khanh, bui khac
khac tu » khac tung, khac tuoi, khac hau
cam luc » cam xuc, cau luc
hieu va » lieu va, hieu qua
cuu tre » cua tre, cau tren, cau treo
va cam » va cham, va cac, va cao
ang xa » lang xa, mang xa, dang xay
tu ang » tu lang, tu anc, tu anh

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 va cam luc ((van hanh) 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 va cam luc ((van hanh) OR (ban hanh)) tri ((cua triet) OR (cuu tre)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu khac tu ang xa hoi. hieu va cam luc ((van hanh) OR (ban hanh)) tri ((cua triet) or (cuu tre))".
• Adding a wildcard symbol may retrieve word variants: vu khac tu ang xa hoi. hieu va cam luc ((van hanh) OR (ban hanh)) tri ((cua triet) or (cuu tre))*.