Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
hanh lam » thanh lap, hanh kem, hanh va
cua tre » cua te, cuu tre, dua tren
va hanh » van hanh, va thanh, va danh
te sach » toc sach
nang xa » nang x, lang xa, nang ma
va cham » va chat, va tham
sach v » sach va, sach y, sach 2
luc va » duc va, tuc va, loc va
va cam » va cac, va cao, va cai
v nang » va nang, vu nang, van nang

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 nang xa hoi. hieu ((va cam) OR (va cham)) luc va hanh lam ((cua tre) or (cua triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach v nang xa hoi. hieu ((va cam) OR (va cham)) luc va hanh lam ((cua tre) OR (cua triet)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach v nang xa hoi. hieu ((va cam) OR (va cham)) luc va hanh lam ((cua tre) or (cua triet))".
• Adding a wildcard symbol may retrieve word variants: te sach v nang xa hoi. hieu ((va cam) OR (va cham)) luc va hanh lam ((cua tre) or (cua triet))*.