Perhaps you should try some spelling variations:
ky lang » ky nang, ky tang, tay lang
ky dang » ky nang, ky danh
hieu ve » hieu va, hieu van
cac hoc » cach hoc, cac hop, bac hoc
va hanh » van hanh, va thanh, va danh
tu sac » tu sach, tu san, tu bac
ve cac » va cac, vien cac
vi cua » vai cua, di cua
cua te » cua tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((tu sac) or (tu cac)) ((ky lang) or (ky dang)) xa hoi. hieu ve cac hoc va hanh vi cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sac) OR (tu cac)) ((ky lang) OR (ky dang)) xa hoi. hieu ve cac hoc va hanh vi cua te.
• Adding a wildcard symbol may retrieve word variants: ((tu sac) or (tu cac)) ((ky lang) or (ky dang)) xa hoi. hieu ve cac hoc va hanh vi cua te*.