Perhaps you should try some spelling variations:
van khang » van khanh, van thanh, van quang
van hang » van hoang, van thang, ban hang
tu sach » thu sach, su sach, te sach
tai cua » thai cua, tai cuc, tri cua
ve cham » va cham, ve chat, vu cham
sach ky » sac ky, sach y, sach ty
nang xa » nang x, lang xa, nang ma
cua tre » cua te, cuu tre, cua triet
ve cam » ve cac, va cam, ve cai

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 ky nang xa hoi. hieu ((ve cam) or (ve cham)) tuc ((van hang) OR (van khang)) tai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky nang xa hoi. hieu ((ve cam) OR (ve cham)) tuc ((van hang) OR (van khang)) tai cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ky nang xa hoi. hieu ((ve cam) or (ve cham)) tuc ((van hang) OR (van khang)) tai cua tre".
• Adding a wildcard symbol may retrieve word variants: tu sach ky nang xa hoi. hieu ((ve cam) or (ve cham)) tuc ((van hang) OR (van khang)) tai cua tre*.