Perhaps you should try some spelling variations:
su triet » su viet, su tien, ve triet
cham tuc » nham thuc, pham thuc, tham thuc
hieu va » lieu va, hieu qua
va hanh » van hanh, va thanh, va danh
va vanh » va van, va danh, va anh
te sach » toc sach
hieu ve » hieu van
sang xa » song xa, lang xa, sang ma
sach v » sach va, sach y, sach 2
v sang » va sang, ve sang, _ sang
dai su » dai sua, dai so, dan su

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach v sang xa hoi. ((hieu ve) or (hieu va)) cham tuc ((va vanh) OR (va hanh)) dai su triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach v sang xa hoi. ((hieu ve) OR (hieu va)) cham tuc ((va vanh) OR (va hanh)) dai su triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach v sang xa hoi. ((hieu ve) or (hieu va)) cham tuc ((va vanh) OR (va hanh)) dai su triet".
• Adding a wildcard symbol may retrieve word variants: te sach v sang xa hoi. ((hieu ve) or (hieu va)) cham tuc ((va vanh) OR (va hanh)) dai su triet*.