Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
van hanh » van thanh, ban hanh, van anh
vu khach » vu khanh, vay khach, cua khach
ty nang » ky nang, ty xang, ty hang
nang xa » nang x, lang xa, nang ma
vu khac » vu kham, vu khanh, bui khac
cam luc » cam xuc, cau luc
luc van » luoc van, luu van, duc van
hieu ve » hieu va, hieu van
vi cua » vai cua, di cua

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) OR (vu khac)) ty nang xa hoi. ((hieu ve) or (lieu va)) cam luc van hanh vi cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((vu khach) OR (vu khac)) ty nang xa hoi. ((hieu ve) OR (lieu va)) cam luc van hanh vi cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((vu khach) OR (vu khac)) ty nang xa hoi. ((hieu ve) or (lieu va)) cam luc van hanh vi cua triet".
• Adding a wildcard symbol may retrieve word variants: ((vu khach) OR (vu khac)) ty nang xa hoi. ((hieu ve) or (lieu va)) cam luc van hanh vi cua triet*.