Perhaps you should try some spelling variations:
khanh lai » khanh luan, thanh lap, thanh loi
nang cau » nang cao, hang cau, nang dau
va triet » va thiet, va trien, ve triet
xa khanh » xa thanh, van khanh, dat khanh
su sach » so sach, vu sach
va chat » van chat, va phat, cao chat
ve chat » van chat
su viet » so viet
sach v » sach va, sach y, sach 2
xuc xa » tuc xa, buc xa
v nang » va nang, vu nang, van nang

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 v nang cau hoi. hieu ((ve chat) or (va chat)) xuc xa khanh lai ((va triet) or (su viet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach v nang cau hoi. hieu ((ve chat) OR (va chat)) xuc xa khanh lai ((va triet) OR (su viet)).
• Adding a wildcard symbol may retrieve word variants: su sach v nang cau hoi. hieu ((ve chat) or (va chat)) xuc xa khanh lai ((va triet) or (su viet))*.