Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
te sach » toc sach
ty nang » ky nang, ty hang, ly nang
qua cam » qua cham, qua cac, qua ca
duc ban » duc tan, duc van, dua ban
hanh ve » hanh vi, hanh va, hanh kem
ve cua » le cua, de cua, te 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 ((ty nang) OR (ty xang)) xa hoi. hieu qua cam ((cua ban) or (duc ban)) hanh ve cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ((ty nang) OR (ty xang)) xa hoi. hieu qua cam ((cua ban) OR (duc ban)) hanh ve cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ((ty nang) OR (ty xang)) xa hoi. hieu qua cam ((cua ban) or (duc ban)) hanh ve cua triet".
• Adding a wildcard symbol may retrieve word variants: te sach ((ty nang) OR (ty xang)) xa hoi. hieu qua cam ((cua ban) or (duc ban)) hanh ve cua triet*.