Perhaps you should try some spelling variations:
vu khach » vu khanh, vu khac, vay khach
khach ty » sach ty
su triet » su viet, su tien, ve triet
hieu ve » hieu van
ty nang » ky nang, ty xang, ty hang
cam duc » cam xuc, cao duc, pham duc
van anh » van thanh, tuan anh, van minh
hieu va » lieu va, hieu qua
x hoi » xa hoi, o hoi, x ho
vi su » va su, ve su, ki su

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 x hoi. ((hieu ve) or (hieu va)) cam duc ((van ban) or (van anh)) vi su triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu khach ty nang x hoi. ((hieu ve) OR (hieu va)) cam duc ((van ban) OR (van anh)) vi su triet.
• Adding a wildcard symbol may retrieve word variants: vu khach ty nang x hoi. ((hieu ve) or (hieu va)) cam duc ((van ban) or (van anh)) vi su triet*.