Perhaps you should try some spelling variations:
lam truoc » lam thuoc, nam truoc, lam truong
va thanh » gia thanh, ban thanh, va tinh
va hanh » van hanh, va danh, ban hanh
sinh ty » sinh ly, sinh tu, dinh ty
nang xa » nang x, lang xa, nang ma
cuu tre » cua tre, cau tren, cau treo
va lam » van lam, va lap
sinh y » sinh ly
vi cuu » vi luu, vinh cuu

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((sinh ty) or (sinh y)) nang xa hoi. lieu va lam truoc ((va hanh) OR (va thanh)) vi cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((sinh ty) OR (sinh y)) nang xa hoi. lieu va lam truoc ((va hanh) OR (va thanh)) vi cuu tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((sinh ty) or (sinh y)) nang xa hoi. lieu va lam truoc ((va hanh) OR (va thanh)) vi cuu tre".
• Adding a wildcard symbol may retrieve word variants: hoc ((sinh ty) or (sinh y)) nang xa hoi. lieu va lam truoc ((va hanh) OR (va thanh)) vi cuu tre*.