Perhaps you should try some spelling variations:
ve triet » va trien, su triet
hieu van » thien van, lieu va, hieu ve
ky tang » ky nang, ky dang, kho tang
hieu va » lieu va, hieu qua
ma hoi » mai hoi, ma hoa, me hoi
san ky » sang ky, van ky, dan ky
cau tu » dau tu, cau truc
va anh » van anh, va danh, va hanh
anh ve » hanh ve, anh va, anh viet
te san » te ban, ke san, tu san
ve ve » de ve, va ve, ke ve

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

• Performing a fuzzy search may retrieve terms with similar spellings: te san ky tang ((ma hoi) OR (xa hoi)). ((hieu van) or (hieu va)) cau tu va anh ve ve triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te san ky tang ((ma hoi) OR (xa hoi)). ((hieu van) OR (hieu va)) cau tu va anh ve ve triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te san ky tang ((ma hoi) OR (xa hoi)). ((hieu van) or (hieu va)) cau tu va anh ve ve triet".
• Adding a wildcard symbol may retrieve word variants: te san ky tang ((ma hoi) OR (xa hoi)). ((hieu van) or (hieu va)) cau tu va anh ve ve triet*.