Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
so sach » so sanh, bo sach, co sach
hoc anh » hoc nganh, hoc nhanh, ngoc anh
nang xa » nang x, lang xa, nang ma
ve cham » va cham, vu cham, ve chim
ve chat » va chat, van chat
xa hanh » xa thanh, xa khanh, va hanh
vi cua » vai cua, di cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((so sach) or (hoc anh)) ky nang xa hoi. hieu ((ve cham) OR (ve chat)) tuc xa hanh vi cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((so sach) OR (hoc anh)) ky nang xa hoi. hieu ((ve cham) OR (ve chat)) tuc xa hanh vi cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((so sach) or (hoc anh)) ky nang xa hoi. hieu ((ve cham) OR (ve chat)) tuc xa hanh vi cua triet".
• Adding a wildcard symbol may retrieve word variants: ((so sach) or (hoc anh)) ky nang xa hoi. hieu ((ve cham) OR (ve chat)) tuc xa hanh vi cua triet*.