Perhaps you should try some spelling variations:
cua triet » cua viet, su triet
va triet » va thiet, va trien, ve triet
cham tuc » nham thuc, pham thuc, tham thuc
hanh di » hanh vi, hanh de, hang di
xa hanh » xa thanh, xa khanh, va hanh
su sach » so sach, vu sach
hieu ve » hieu va, hieu van
nang xa » nang x, lang xa, nang ma
hoc anh » hoc nganh, hoc nhanh, ngoc anh
ve cham » va cham, ve chat, vu cham

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

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