Perhaps you should try some spelling variations:
cau triet » cau trieu, cua triet, va triet
su triet » su viet, su tien, ve triet
cau theo » cau thi, cau tao
va hanh » van hanh, va thanh, va danh
hieu ve » hieu va, hieu van
tang xa » trang xa, tang ma, lang xa
ky tang » ky nang, ky dang, kho tang
ve cac » va cac, vien cac
sai ky » sac ky
tu sai » tu bai, tu san, tu cai
du va » dau va, tu va, su va

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sai ky tang xa hoi. hieu ve cac du va hanh vi ((cau theo) or (((cau triet) OR (su triet))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sai ky tang xa hoi. hieu ve cac du va hanh vi ((cau theo) OR (((cau triet) OR (su triet))))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sai ky tang xa hoi. hieu ve cac du va hanh vi ((cau theo) or (((cau triet) OR (su triet))))*".