Perhaps you should try some spelling variations:
thau xay » thuat xay, tu xay, phan xay
danh vai » danh sai, danh va, doanh van
va triet » va thiet, va trien, ve triet
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
vai va » mai va, dai va, hai va
o hoi » co hoi, o hoc, o hai
lo va » lo van, lao va, ly va

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 (thau xay)) ky nang o hoi. hieu va cac lo va danh vai va triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((thu xac) OR (thau xay)) ky nang o hoi. hieu va cac lo va danh vai va triet".
• Adding a wildcard symbol may retrieve word variants: ((thu xac) OR (thau xay)) ky nang o hoi. hieu va cac lo va danh vai va triet*.