Perhaps you should try some spelling variations:
cau triet » cau trieu, su triet, cua triet
cham duc » pham duc, cham soc, pham duy
cau treo » cau theo, cau tren, cau trieu
hanh san » thanh san, khach san, thanh son
ban hanh » ban hang
duc ban » duc tan, duc van, dua ban
ve cham » va cham, ve chat, vu cham
hieu ve » hieu va, hieu van
van hoc » van hoa
ky tang » ky nang, ky dang, kho tang
ky lang » ky nang, ky dang, tay lang
tu cai » tu cac, tu can, tu bai

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu cai ((ky lang) or (ky tang)) van hoc. hieu ve cham duc ban hanh san ((cau treo) or (cau triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu cai ((ky lang) OR (ky tang)) van hoc. hieu ve cham duc ban hanh san ((cau treo) OR (cau triet)).
• Adding a wildcard symbol may retrieve word variants: tu cai ((ky lang) or (ky tang)) van hoc. hieu ve cham duc ban hanh san ((cau treo) or (cau triet))*.