Perhaps you should try some spelling variations:
sach vu » sach va, sach uu, sach xu
sach tu » sach thu, cach tu, sach ty
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
hanh ve » hanh vi, hanh va, hanh kem
cua tre » cua te, cuu tre, cua triet
va cam » va cham, va cac, va cao
luc va » duc va, tuc va, loc va
ve cua » le cua, de cua, te cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((sach vu) or (sach tu)) nang xa hoi. hieu va cam luc va hanh ve cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((sach vu) OR (sach tu)) nang xa hoi. hieu va cam luc va hanh ve cua tre.
• Adding a wildcard symbol may retrieve word variants: hoc ((sach vu) or (sach tu)) nang xa hoi. hieu va cam luc va hanh ve cua tre*.