Perhaps you should try some spelling variations:
quan tai » quan tri, quang tri, quan li
van quan » van ban
cuu tre » cau tren, cau treo
tang xa » trang xa, tang ma, lang xa
hieu ve » hieu va, hieu van
cua tre » cua te, cua triet, dua tren
cam duc » cam xuc, cao duc, nam duoc
ky tang » ky nang, ky dang, kho tang
thi ky » thi ly, thi my

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

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