Perhaps you should try some spelling variations:
ve triet » va trien, su triet
tu tieng » luc tieng, tu tuong, tu trong
nang mai » nang ma, nang tai, lang mai
thanh ki » thanh kim, thanh ky, thanh ke
luc van » luoc van, luu van, duc van
te sach » toc sach
sach tu » sach thu, cach tu, sach ty
hieu va » lieu va, hieu qua
mai hoi » mai khoi, dai hoi, lai hoi
tu nang » tru nang, tu nong, tu nano
xuc van » duc van, vuc van, xuc ban
va cam » va cham, va cac, va cao

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 tu nang mai hoi. hieu va cam ((xuc van) OR (luc van)) thanh ki ((tu tieng) or (ve triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach tu nang mai hoi. hieu va cam ((xuc van) OR (luc van)) thanh ki ((tu tieng) OR (ve triet)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach tu nang mai hoi. hieu va cam ((xuc van) OR (luc van)) thanh ki ((tu tieng) or (ve triet))".
• Adding a wildcard symbol may retrieve word variants: te sach tu nang mai hoi. hieu va cam ((xuc van) OR (luc van)) thanh ki ((tu tieng) or (ve triet))*.