Perhaps you should try some spelling variations:
cau tren » cu tren, dau tren, ca tren
thu sach » tu sach, thuat sach, thuoc sach
danh lai » danh sai, gianh lai, dinh lam
lai cau » lai chau, lai cam, loi cau
va danh » va dinh, va dan, va hanh
cac duc » cac du, cao duc, cac dac
hieu ve » hieu va, hieu van
tu cach » tu cac
xay hoi » tay hoi, cay phoi, gay thoi
ky dang » ky nang, ky danh
ve cac » va cac, vien cac

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

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