Perhaps you should try some spelling variations:
danh vai » danh sai, danh va, doanh van
va triet » va trien, ve triet, cua triet
thu xac » thau xay
hieu va » lieu va, hieu qua
va danh » va dinh, va dan, va hanh
nang o » nang co, nang ho, nang ro
cac lo » cac lop, cac co, cac bo
o hoi » co hoi, o hoc, o hai
lo va » lo van, lao va, ly va
thiet » thieu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((thu xac) or (thuat xay)) ky nang o hoi. hieu va cac lo va danh vai ((va triet) or (va thiet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((thu xac) OR (thuat xay)) ky nang o hoi. hieu va cac lo va danh vai ((va triet) OR (va thiet)).
• Adding a wildcard symbol may retrieve word variants: ((thu xac) or (thuat xay)) ky nang o hoi. hieu va cac lo va danh vai ((va triet) or (va thiet))*.