Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
hang xa » hoang xa, hang va, lang xa
hang ca » hang va, nang cao, hang tai
hieu ve » hieu va, hieu van
ve cham » va cham, ve chat, vu cham
xuc va » tuc va, luc va, xac va
vi cua » vai cua, di cua
cua te » cua tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: thu sach y ((hang xa) or (hang ca)) hoi. hieu ve cham ((xuc va) OR (duc va)) hanh vi cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach y ((hang xa) OR (hang ca)) hoi. hieu ve cham ((xuc va) OR (duc va)) hanh vi cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sach y ((hang xa) or (hang ca)) hoi. hieu ve cham ((xuc va) OR (duc va)) hanh vi cua te".
• Adding a wildcard symbol may retrieve word variants: thu sach y ((hang xa) or (hang ca)) hoi. hieu ve cham ((xuc va) OR (duc va)) hanh vi cua te*.