Perhaps you should try some spelling variations:
ve triet » va trien, su triet
cam thuc » am thuc, nam thuc, can thuc
danh de » hanh de, dan de, dang de
va danh » va dinh, va dan, va hanh
cam thu » nam thu, cac thu, ca thu
hieu va » lieu va, hieu qua
hieu ve » hieu van
tang xa » trang xa, tang ma, lang xa
ky tang » ky nang, ky dang, kho tang
sai ky » sac ky
te sai » te tai, te bai, te lai

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

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