Perhaps you should try some spelling variations:
hang cao » hoang cao, nang cao, hang ca
tu sach » thu sach, su sach, te sach
ve chat » va chat, van chat
hanh va » hang va
chua te » cua te, chua tu, chua xe
sach ty » sach y, sach tu, sach thu
ve cham » va cham, vu cham, ve chim
cao hoi » cau hoi, co hoi, cao hoc
ty hang » ly hang, ty xang, thi hang
loc va » hoc va, luc va

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 ty hang cao hoi. hieu ((ve cham) or (ve chat)) loc va ((hanh va) OR (hanh vi)) chua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ty hang cao hoi. hieu ((ve cham) OR (ve chat)) loc va ((hanh va) OR (hanh vi)) chua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ty hang cao hoi. hieu ((ve cham) or (ve chat)) loc va ((hanh va) OR (hanh vi)) chua te".
• Adding a wildcard symbol may retrieve word variants: tu sach ty hang cao hoi. hieu ((ve cham) or (ve chat)) loc va ((hanh va) OR (hanh vi)) chua te*.