Perhaps you should try some spelling variations:
van thanh » ban thanh, van tuan
vu khach » vu khanh, vu khac, vay khach
khach ty » sach ty
van hanh » ban hanh, van anh, van ban
va triet » va thiet, va trien, ve triet
hieu ve » hieu va, hieu van
cam luc » cam xuc, cau luc
nang xa » nang x, lang xa, nang ma
ty nang » ky nang, ty xang, ty hang
vi va » vi van, vai va, vu va

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

• Performing a fuzzy search may retrieve terms with similar spellings: vu khach ty nang xa hoi. ((hieu ve) or (lieu va)) cam luc ((van hanh) or (van thanh)) vi va triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu khach ty nang xa hoi. ((hieu ve) OR (lieu va)) cam luc ((van hanh) OR (van thanh)) vi va triet.
• Adding a wildcard symbol may retrieve word variants: vu khach ty nang xa hoi. ((hieu ve) or (lieu va)) cam luc ((van hanh) or (van thanh)) vi va triet*.