Perhaps you should try some spelling variations:
va triet » va thiet, va trien, ve triet
hanh sua » hinh su, hanh va, hanh tu
van hanh » van thanh, ban hanh, van anh
may nang » may nong, ky nang, cam nang
va nang » van nang, da nang, cam nang
hieu ve » hieu va, hieu van
cam duc » cam xuc, cao duc, pham duc
duc van » duc va, duc tan, duc manh
su sach » so sach, vu sach
co hoi » co hoc, co loi
ve cam » ve cham, ve cac, va cam
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 ((may nang) or (va nang)) co hoi. hieu ve cam duc van hanh sua va triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ((may nang) OR (va nang)) co hoi. hieu ve cam duc van hanh sua va triet.
• Adding a wildcard symbol may retrieve word variants: su sach ((may nang) or (va nang)) co hoi. hieu ve cam duc van hanh sua va triet*.