Perhaps you should try some spelling variations:
qua cham » qua hai, qua cac, va cham
so sach » so sanh, bo sach, co sach
lang xa » lang ha, dang xay, lang van
y lang » o lang, _ lang, tay lang
qua ca » qua cac, qua cua, qua cai
xuc va » tuc va, luc va, xac va
vi hoa » voi hoa, vi hoc, va hoa

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

• Performing a fuzzy search may retrieve terms with similar spellings: so sach y lang xa hoi. hieu ((qua cham) or (qua ca)) ((xuc va) or (duc va)) hanh vi hoa viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach y lang xa hoi. hieu ((qua cham) OR (qua ca)) ((xuc va) OR (duc va)) hanh vi hoa viet.
• Adding a wildcard symbol may retrieve word variants: so sach y lang xa hoi. hieu ((qua cham) or (qua ca)) ((xuc va) or (duc va)) hanh vi hoa viet*.