Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
hieu viec » nhieu viec, hieu ve, sieu viet
hieu vien » hieu hien, thieu nien, hieu tieng
dai bao » dam bao, da bao, tai bao
te sach » toc sach
nang xa » nang x, lang xa, nang ma
vu sach » vu bach, su sach, vu khach
bao va » bao ve, tao va, ban va
va anh » van anh, va danh, va hanh
anh va » hanh va
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: ((te sach) or (vu sach)) ky nang xa hoi. ((hieu vien) OR (hieu viec)) dai bao va anh va cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((te sach) OR (vu sach)) ky nang xa hoi. ((hieu vien) OR (hieu viec)) dai bao va anh va cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((te sach) or (vu sach)) ky nang xa hoi. ((hieu vien) OR (hieu viec)) dai bao va anh va cua triet".
• Adding a wildcard symbol may retrieve word variants: ((te sach) or (vu sach)) ky nang xa hoi. ((hieu vien) OR (hieu viec)) dai bao va anh va cua triet*.