Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
thu sach » tu sach, thuat sach, thuoc sach
thi nang » thi cong, ki nang, thi hanh
va danh » va dinh, va dan, va hanh
danh va » doanh va, hanh va, anh va
va cam » va cham, va cac, va cao
cam tu » cam thu, nam tu, dam tu
va cua » va chua, via cua, ca cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: thu sach ((thi nang) or (thien cong)) xa hoi. lieu va cam tu va danh va cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach ((thi nang) OR (thien cong)) xa hoi. lieu va cam tu va danh va cua triet.
• Adding a wildcard symbol may retrieve word variants: thu sach ((thi nang) or (thien cong)) xa hoi. lieu va cam tu va danh va cua triet*.