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
cam loc » cam lo
te sach » toc sach
hieu va » lieu va, hieu qua
lang xa » lang ha, dang xay, lang van
nang xa » nang x, nang ma, mang xa
sach v » sach va, sach y, sach 2
loc va » hoc va, luc 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: te sach v ((nang xa) OR (lang xa)) hoi. hieu va cam loc 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) OR (lang xa)) hoi. hieu va cam loc 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) OR (lang xa)) hoi. hieu va cam loc va hanh lam ((cua tre) or (cua triet))".
• Adding a wildcard symbol may retrieve word variants: te sach v ((nang xa) OR (lang xa)) hoi. hieu va cam loc va hanh lam ((cua tre) or (cua triet))*.