Perhaps you should try some spelling variations:
qua trinh » qua kinh
qua triet » cua triet, qua tieu, su triet
hieu van » hieu va, thien van, lieu va
van chat » cao chat
chat soc » cham soc, chat hoc, chat doc
tu sach » thu sach, su sach, te sach
sach ky » sac ky, sach y, sach ty
nang xa » nang x, lang xa, nang ma
va hanh » van hanh, va thanh, va danh
ca dan » cac dan, ca dao

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach ky nang xa hoi. hieu van chat soc ((va hanh) or (ca dan)) cau ((qua triet) or (qua trinh))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky nang xa hoi. hieu van chat soc ((va hanh) OR (ca dan)) cau ((qua triet) OR (qua trinh)).
• Adding a wildcard symbol may retrieve word variants: tu sach ky nang xa hoi. hieu van chat soc ((va hanh) or (ca dan)) cau ((qua triet) or (qua trinh))*.