Perhaps you should try some spelling variations:
thanh lai » thanh hai, thanh lap, thanh loi
cau tren » cu tren, dau tren, ca tren
dua tren » dung tren
va thanh » gia thanh, ban thanh, va tinh
dang xay » dang van, van xay
xay hoi » xa hoi, tay hoi, cay phoi
hieu ve » hieu va, hieu van
cam tuc » cam xuc, cam tu, nam thuc
sach ky » sac ky, sach y, sach ty
ky dang » ky nang, ky danh
cuu tre » cua tre, cau treo
tu sach » thu sach, su sach, te sach
ve cam » ve cham, ve cac, va cam
tuc va » thuc va, truc va, tuc xa

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach ky dang xay hoi. hieu ve cam tuc va thanh lai ((dua tren) or (((cuu tre) or (cau tren))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky dang xay hoi. hieu ve cam tuc va thanh lai ((dua tren) OR (((cuu tre) OR (cau tren)))).
• Adding a wildcard symbol may retrieve word variants: tu sach ky dang xay hoi. hieu ve cam tuc va thanh lai ((dua tren) or (((cuu tre) or (cau tren))))*.