Perhaps you should try some spelling variations:
su sach » so sach
tinh vi » trinh vi, tinh voi, tinh va
va tinh » may tinh
cua tre » cua te, cuu tre, cua triet
lang xa » lang ha, dang xay, lang van
ky lang » ky nang, ky dang, ky tang
vu sach » vu bach, vu khach
luc va » duc va, tuc va, loc va
vi cua » vai cua, di cua
ve coc » ve cuoc, ve cac
ve co » vo co, va co, de 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 (vu sach)) ky lang xa hoi. hieu ((ve coc) or (ve co)) luc va tinh vi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sach) OR (vu sach)) ky lang xa hoi. hieu ((ve coc) OR (ve co)) luc va tinh vi cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((su sach) OR (vu sach)) ky lang xa hoi. hieu ((ve coc) or (ve co)) luc va tinh vi cua tre".
• Adding a wildcard symbol may retrieve word variants: ((su sach) OR (vu sach)) ky lang xa hoi. hieu ((ve coc) or (ve co)) luc va tinh vi cua tre*.