Perhaps you should try some spelling variations:
thanh gian » thanh giang, thach giang, thanh san
gian cua » gian xu, ban cua
va thanh » gia thanh, ban thanh, va tinh
tu sach » thu sach, su sach, te sach
sach tu » sach thu, cach tu, sach ty
ve chat » va chat, van chat
ve cham » va cham, vu cham, ve chim
tu hang » thu hang, tu hanh, tu hung
cua tre » cua te, cuu tre, cua triet
loc va » hoc va, luc va
ca hoi » cua hoi, xa hoi, co 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 tu hang ((ca hoi) or (cau hoi)). hieu ((ve cham) or (ve chat)) loc va thanh gian cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach tu hang ((ca hoi) OR (cau hoi)). hieu ((ve cham) OR (ve chat)) loc va thanh gian cua tre.
• Adding a wildcard symbol may retrieve word variants: tu sach tu hang ((ca hoi) or (cau hoi)). hieu ((ve cham) or (ve chat)) loc va thanh gian cua tre*.