Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
sach tu » sach thu, cach tu, sach ty
nang xa » nang x, lang xa, nang ma
hieu va » lieu va, hieu qua
cam tuc » cam xuc, cam tu, nam thuc
va cam » va cham, va cac, va cao
tuc va » thuc va, truc va, tuc xa
va dan » ca dan, va dao, va dau
dan di » danh di, dan da, dan de
di cua » dai cua, doi cua, de cua

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: te ((sach y) OR (sach tu)) nang xa hoi. hieu va cam tuc va dan di cua triet~.
• Adding a wildcard symbol may retrieve word variants: te ((sach y) or (sach tu)) nang xa hoi. hieu va cam tuc va dan di cua triet*.