Perhaps you should try some spelling variations:
tinh voi » trinh voi, tinh doi, binh voi
tu sach » thu sach, su sach, te sach
tinh vi » trinh vi, tinh va, dinh vi
cuc ban » cua ban, cac ban, cuu ban
vu cham » va cham, vu kham, tu cham
ve cham » va cham, ve chat, ve chim
dang ha » dong ha, dung ha, lang ha
cua tre » cua te, cuu tre, cua triet
y dang » ky dang, 2 dang, _ dang
ha hoi » hoa hoi, ha noi, xa hoi

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach y dang ha hoi. hieu ((ve cham) or (vu cham)) cuc ban ((tinh vi) OR (tinh voi)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach y dang ha hoi. hieu ((ve cham) OR (vu cham)) cuc ban ((tinh vi) OR (tinh voi)) cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach y dang ha hoi. hieu ((ve cham) or (vu cham)) cuc ban ((tinh vi) OR (tinh voi)) cua tre".
• Adding a wildcard symbol may retrieve word variants: tu sach y dang ha hoi. hieu ((ve cham) or (vu cham)) cuc ban ((tinh vi) OR (tinh voi)) cua tre*.