Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
thu sach » tu sach, thuat sach, thuoc sach
hieu van » hieu va, thien van, lieu va
nang xa » nang x, lang xa, nang ma
van cac » van hac, van cau, van bac
cac toc » cac toi, cac nuoc, cac thoi
ta hanh » ta thanh, va hanh, tu hanh
tu sac » tu sach, tu san, tu bac
toc ta » toc tay, toc thai
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: ((((tu sac) or (thu sach))) or (tu cac)) ky nang xa hoi. hieu van cac toc ta hanh vi cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((((tu sac) OR (thu sach))) OR (tu cac)) ky nang xa hoi. hieu van cac toc ta hanh vi cua triet.
• Adding a wildcard symbol may retrieve word variants: ((((tu sac) or (thu sach))) or (tu cac)) ky nang xa hoi. hieu van cac toc ta hanh vi cua triet*.