Perhaps you should try some spelling variations:
cau tren » cu tren, dau tren, ca tren
dung sai » dung tai, dung va, dung dat
danh sai » danh bat, danh dau, hanh san
tu sach » thu sach, su sach, te sach
hieu ve » hieu va, hieu van
lang xa » lang ha, dang xay, lang van
ty lang » tay lang, ty xang, ty hang
cac xuc » cam xuc, cac nuoc, chat xuc
ve cac » va cac, vien cac
xuc va » duc va, tuc va, luc va

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

• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (thu hoach)) ty lang xa hoi. hieu ve cac xuc va ((danh sai) OR (dung sai)) cau tren~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sach) or (thu hoach)) ty lang xa hoi. hieu ve cac xuc va ((danh sai) OR (dung sai)) cau tren~".
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (thu hoach)) ty lang xa hoi. hieu ve cac xuc va ((danh sai) OR (dung sai)) cau tren*.