Perhaps you should try some spelling variations:
cau theo » cau tao
qua van » quan van, qua ban, qua va
qua san » qua ban, cua san, qua quan
va hanh » van hanh, va thanh, va danh
su sac » su sach, su cac, su xac
sac ky » cac ky, sai ky
tuc va » thuc va, truc va, tuc xa
x hoi » xa hoi, o hoi, x ho

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sac ky nang x hoi. hieu ((qua van) or (qua san)) tuc va hanh vi ((cau theo) or (cau thi))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sac ky nang x hoi. hieu ((qua van) OR (qua san)) tuc va hanh vi ((cau theo) OR (cau thi)).
• Adding a wildcard symbol may retrieve word variants: su sac ky nang x hoi. hieu ((qua van) or (qua san)) tuc va hanh vi ((cau theo) or (cau thi))*.