Perhaps you should try some spelling variations:
chat viet » cham viet, nhat viet, chuan viet
vuc nang » cuc nang, vu nang, chuc nang
truc van » truc va, thuc van, truc ban
van hanh » van thanh, ban hanh, van anh
hanh lam » thanh lap, hanh kem, hanh va
lam chat » luan chat, cao chat, ly chat
su sach » so sach, vu sach
qua cau » quan cau, qua cac, qua ca
v nang » va nang, vu nang, van nang
ma hoi » mai hoi, xa hoi, ma hoa

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) or (vuc nang)) ma hoi. hieu qua cau truc van hanh lam chat viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ((v nang) OR (vuc nang)) ma hoi. hieu qua cau truc van hanh lam chat viet.
• Adding a wildcard symbol may retrieve word variants: su sach ((v nang) or (vuc nang)) ma hoi. hieu qua cau truc van hanh lam chat viet*.