Perhaps you should try some spelling variations:
hieu van » thien van, lieu va, hieu ve
danh sai » dung sai, danh bat, danh dau
ve triet » va trien, su triet
te sach » toc sach
sach ky » sac ky, sach y, sach ty
ky lang » ky nang, ky dang, ky tang
lang xa » lang ha, dang xay, lang van
hieu va » lieu va, hieu qua
cam duc » cam xuc, cao duc, pham duc
va danh » va dinh, va dan, va hanh
cua te » cua tu

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 ky lang xa hoi. ((hieu van) OR (hieu va)) cam duc va danh sai ((ve triet) or (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ky lang xa hoi. ((hieu van) OR (hieu va)) cam duc va danh sai ((ve triet) OR (cua te))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ky lang xa hoi. ((hieu van) OR (hieu va)) cam duc va danh sai ((ve triet) or (cua te))*".