Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
thanh lai » thanh hai, thanh lap, thanh loi
dua tren » dung tren
cau treo » cau theo, cau tren, cau triet
te sach » toc sach
nang ma » tang ma, sang ma, nang cao
hieu ve » hieu va, hieu van
ve pham » vi pham, v pham, ve phan
duc ban » duc tan, duc van, dua ban
y nang » ky nang, ly nang, v nang
ma hoi » mai hoi, xa hoi, ma hoa

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 y nang ma hoi. hieu ve pham duc ban thanh lai ((dua tren) or (cau treo))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach y nang ma hoi. hieu ve pham duc ban thanh lai ((dua tren) OR (cau treo)).
• Adding a wildcard symbol may retrieve word variants: te sach y nang ma hoi. hieu ve pham duc ban thanh lai ((dua tren) or (cau treo))*.