Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
hanh lam » thanh lap, hanh kem, hanh va
sach va » sach xa, sach ha, sach dao
nang xa » nang x, lang xa, nang ma
hieu va » lieu va, hieu qua
cam luc » cam xuc, cau luc
va hanh » van hanh, va thanh, va danh
cua tre » cua te, cuu tre, dua tren
sach v » sach y, sach 2, sach vay
luc va » duc va, tuc va, loc va
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: toc ((sach v) OR (sach va)) nang xa hoi. hieu va cam luc va hanh lam ((cua tre) or (cua triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc ((sach v) OR (sach va)) nang xa hoi. hieu va cam luc va hanh lam ((cua tre) OR (cua triet)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc ((sach v) OR (sach va)) nang xa hoi. hieu va cam luc va hanh lam ((cua tre) or (cua triet))".
• Adding a wildcard symbol may retrieve word variants: toc ((sach v) OR (sach va)) nang xa hoi. hieu va cam luc va hanh lam ((cua tre) or (cua triet))*.