Perhaps you should try some spelling variations:
cau tren » cu tren, dau tren, ca tren
ban hanh » ban hang
hanh tai » thanh tai, hang tai, han tai
hieu ve » hieu va, hieu van
cac xuc » cam xuc, cac nuoc, chat xuc
xuc ban » duc ban, cuc ban, quoc ban
te sach » toc sach
tai cau » tai cac, tai cao
tu sach » thu sach, su sach, tu cach
ro hoi » o hoi, mo hoi, ro doi
co hoi » co hoc, co loi
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 sach) or (te sach)) ky nang ((ro hoi) or (co hoi)). hieu ve cac xuc ban hanh tai cau tren~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (te sach)) ky nang ((ro hoi) OR (co hoi)). hieu ve cac xuc ban hanh tai cau tren.
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (te sach)) ky nang ((ro hoi) or (co hoi)). hieu ve cac xuc ban hanh tai cau tren*.