Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
vu khach » vu khanh, vu khac, vay khach
tu cach » tu cac
nang xa » nang x, lang xa, nang ma
hieu va » lieu va, hieu qua
hanh va » hang va, hanh vi
va cam » va cham, va cac, va cao
xac va » tac va, ac va, bac va
va cua » va chua, via cua, ca cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((tu cach) or (vu khach)) ky nang xa hoi. hieu va cam ((xac va) or (duc va)) hanh va cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu cach) OR (vu khach)) ky nang xa hoi. hieu va cam ((xac va) OR (duc va)) hanh va cua triet.
• Adding a wildcard symbol may retrieve word variants: ((tu cach) or (vu khach)) ky nang xa hoi. hieu va cam ((xac va) or (duc va)) hanh va cua triet*.