Perhaps you should try some spelling variations:
nhan tai » hang tai, van tai, toan tai
su sach » so sach, vu sach
ve chat » va chat, van chat
va nhan » van nhan, ca nhan, va phan
va cham » va chat, va tham
nang ma » tang ma, sang ma, nang cao
y nang » ky nang, ly nang, v nang
xuc va » duc va, tuc va, luc va
ma hoi » mai hoi, xa hoi, ma hoa
tai va » thai va, mai va, tri 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 ma hoi. hieu ((va cham) or (ve chat)) xuc va nhan tai va (thiet or thieu)~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach y nang ma hoi. hieu ((va cham) OR (ve chat)) xuc va nhan tai va (thiet OR thieu).
• Adding a wildcard symbol may retrieve word variants: su sach y nang ma hoi. hieu ((va cham) or (ve chat)) xuc va nhan tai va (thiet or thieu)*.