Perhaps you should try some spelling variations:
va triet » va thiet, va trien, ve triet
hanh sua » hinh su, hanh va, hanh tu
va hanh » van hanh, va thanh, va danh
cam luc » cau luc
hieu ve » hieu va, hieu van
su sach » so sach, vu sach
lang xa » lang ha, dang xay, lang van
nang xa » nang x, nang ma, mang xa
sua va » suat va, vua va, xua va

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sach y ((nang xa) OR (lang xa)) hoi. hieu ve ((cam luc) or (cam xuc)) va hanh sua va triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach y ((nang xa) OR (lang xa)) hoi. hieu ve ((cam luc) OR (cam xuc)) va hanh sua va triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach y ((nang xa) OR (lang xa)) hoi. hieu ve ((cam luc) or (cam xuc)) va hanh sua va triet".
• Adding a wildcard symbol may retrieve word variants: su sach y ((nang xa) OR (lang xa)) hoi. hieu ve ((cam luc) or (cam xuc)) va hanh sua va triet*.