Perhaps you should try some spelling variations:
ban thanh » ban hanh
ban hang » ngan hang
khoa hoi » khoan hoi, khoa hoc, khoa doi
ky lang » ky dang, ky tang, tay lang
hieu ve » hieu va, hieu van
cam cuc » cam xuc, cham cuu, pham cuc
xu bac » xa bac
de cua » le cua, te cua, dieu cua
ve cam » ve cham, ve cac, va cam
cua te » cua tu

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: xu bac ((ky lang) OR (ky nang)) khoa hoi. hieu ve cam cuc ((ban thanh) OR (ban hang)) de cua te~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "xu bac ((ky lang) OR (ky nang)) khoa hoi. hieu ve cam cuc ((ban thanh) or (ban hang)) de cua te~".
• Adding a wildcard symbol may retrieve word variants: xu bac ((ky lang) OR (ky nang)) khoa hoi. hieu ve cam cuc ((ban thanh) or (ban hang)) de cua te*.