Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
ky tang » ky nang, ky dang, kho tang
tang xa » trang xa, tang ma, lang xa
hieu ve » hieu va, hieu van
cam duc » cao duc, pham duc, nam duoc
cua tre » cuu tre, cua triet, dua tren
su xac » pu xac, su cac
xac ky » cac ky, sac ky, bac ky
cua te » cua tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: su xac ky tang xa hoi. hieu ve ((cam duc) or (cam xuc)) ban thanh san ((cua tre) or (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su xac ky tang xa hoi. hieu ve ((cam duc) OR (cam xuc)) ban thanh san ((cua tre) OR (cua te)).
• Adding a wildcard symbol may retrieve word variants: su xac ky tang xa hoi. hieu ve ((cam duc) or (cam xuc)) ban thanh san ((cua tre) or (cua te))*.