Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
thanh vai » thanh hai, thanh van, thanh tai
cau triet » cau trieu, su triet, cua triet
hieu van » hieu va, thien van, lieu va
cau treo » cau theo, cau tren, cau trieu
nam dua » nam da, nam cua, nam mua
dua ban » dia ban, cua ban, qua ban
ma hoi » mai hoi, xa hoi, me hoi

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu cac ky nang ((ma hoi) or (ma hoa)). hieu van nam dua ban thanh vai ((cau treo) OR (cau triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu cac ky nang ((ma hoi) OR (ma hoa)). hieu van nam dua ban thanh vai ((cau treo) OR (cau triet)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu cac ky nang ((ma hoi) or (ma hoa)). hieu van nam dua ban thanh vai ((cau treo) OR (cau triet))".
• Adding a wildcard symbol may retrieve word variants: tu cac ky nang ((ma hoi) or (ma hoa)). hieu van nam dua ban thanh vai ((cau treo) OR (cau triet))*.