Perhaps you should try some spelling variations:
thanh hai » thanh phan, thanh hoa, thanh san
ban thanh » ban hanh, ban hang
thuy san » thuat san, thuy anh
hieu van » hieu va, thien van, lieu va
cau treo » cau theo, cau tren, cau triet
dua ban » dia ban, cua ban, qua ban
cuu tre » cua tre, cau tren
nam dua » nam da, nam cua, nam mua
san ky » sang ky, van ky, dan ky
me hoi » le hoi

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

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