Perhaps you should try some spelling variations:
cau tren » cu tren, dau tren, ca tren
dang xay » dang van, van xay
danh sai » dung sai, danh bat, danh dau
hieu van » thien van, lieu va, hieu ve
danh vai » danh va, doanh van, dang van
te sach » toc sach
sach ky » sac ky, sach y, sach ty
hieu va » lieu va, hieu qua
xay hoi » xa hoi, tay hoi, cay phoi
ky dang » ky nang, ky danh
xuc va » duc va, tuc va, luc va

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 ky dang xay hoi. ((hieu van) or (hieu va)) cam xuc va ((danh vai) or (danh sai)) cau tren~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ky dang xay hoi. ((hieu van) OR (hieu va)) cam xuc va ((danh vai) OR (danh sai)) cau tren.
• Adding a wildcard symbol may retrieve word variants: te sach ky dang xay hoi. ((hieu van) or (hieu va)) cam xuc va ((danh vai) or (danh sai)) cau tren*.