Perhaps you should try some spelling variations:
ky sang » ky nang, ky tang, duy sang
ky dang » ky nang, ky danh
tao hoi » tao khoi, tao boi, tay hoi
hieu ve » hieu va, hieu van
cam tuc » cam xuc, nam thuc, dam thuc
va hanh » van hanh, va thanh, va danh
su sac » su sach, su cac, su xac
cam tu » cam thu, nam tu, dam tu
vi hoa » voi hoa, vi hoc, va hoa

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sac ((ky sang) or (ky dang)) tao hoi. hieu ve ((cam tuc) or (cam tu)) va hanh vi hoa viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sac ((ky sang) OR (ky dang)) tao hoi. hieu ve ((cam tuc) OR (cam tu)) va hanh vi hoa viet.
• Adding a wildcard symbol may retrieve word variants: su sac ((ky sang) or (ky dang)) tao hoi. hieu ve ((cam tuc) or (cam tu)) va hanh vi hoa viet*.