Perhaps you should try some spelling variations:
hoc sach » hoc sinh, hoc cac, hoc anh
nang xa » nang x, lang xa, nang ma
ve chat » va chat, van chat
sach ky » sac ky, sach y, sach ty
luc van » luoc van, luu van, duc van
van anh » van thanh, tuan anh, van minh
vi cua » vai cua
di cua » dai cua, doi cua, de cua
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: hoc sach ky nang xa hoi. hieu ((ve chat) or (ve cac)) luc van anh ((vi cua) or (di cua)) viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc sach ky nang xa hoi. hieu ((ve chat) OR (ve cac)) luc van anh ((vi cua) OR (di cua)) viet.
• Adding a wildcard symbol may retrieve word variants: hoc sach ky nang xa hoi. hieu ((ve chat) or (ve cac)) luc van anh ((vi cua) or (di cua)) viet*.