Perhaps you should try some spelling variations:
su sach » vu sach
va tinh » may tinh
coc loc » coc luc, chon loc
hieu ve » hieu va, hieu van
nang xa » nang x, lang xa, nang ma
so sach » so sanh, bo sach, co sach
loc va » hoc va, luc va
vi cua » vai cua, di cua
de cua » le cua, te cua, dieu cua
ve coc » ve cuoc, ve cac, ve co

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((su sach) or (so sach)) ky nang xa hoi. hieu ve coc loc va tinh ((vi cua) or (de cua)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sach) OR (so sach)) ky nang xa hoi. hieu ve coc loc va tinh ((vi cua) OR (de cua)) tre.
• Adding a wildcard symbol may retrieve word variants: ((su sach) or (so sach)) ky nang xa hoi. hieu ve coc loc va tinh ((vi cua) or (de cua)) tre*.