Perhaps you should try some spelling variations:
chat triet » chet triet, phat trien, chat thien
ban thanh » ban hanh, ban hang
vu khach » vu khanh, vu khac, vay khach
thanh le » thinh le, thanh ve, thanh de
le chat » ly chat, le nhat, ve chat
xuc ban » duc ban, cuc ban, quoc ban
vu sach » vu bach, su sach
nang ro » nang co, nang ho, nang ra
ty nang » ky nang, ty xang, ty hang
ve cam » ve cham, ve cac, ve cai
va cam » va cham, va cac, va cao
ro hoi » co hoi, o hoi, mo hoi

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((vu sach) OR (vu khach)) ty nang ro hoi. hieu ((ve cam) or (va cam)) xuc ban thanh le chat triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((vu sach) OR (vu khach)) ty nang ro hoi. hieu ((ve cam) OR (va cam)) xuc ban thanh le chat triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((vu sach) OR (vu khach)) ty nang ro hoi. hieu ((ve cam) or (va cam)) xuc ban thanh le chat triet".
• Adding a wildcard symbol may retrieve word variants: ((vu sach) OR (vu khach)) ty nang ro hoi. hieu ((ve cam) or (va cam)) xuc ban thanh le chat triet*.