Perhaps you should try some spelling variations:
cham luc » cham soc, nhan luc, cham cuu
cua tre » cua te, cua triet, dua tren
va hanh » van hanh, va thanh, va danh
sach ky » sac ky, sach ty, sach kem
ve cham » va cham, ve chat, vu cham
hieu ve » hieu va, hieu van
nang xa » nang x, lang xa, nang ma
cuu tre » cau tren, cau treo
luc va » duc va, tuc va, loc va

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

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