Perhaps you should try some spelling variations:
toc sach » hoc sach, thuoc sach, nuoc sach
va thanh » gia thanh, ban thanh, va tinh
doc sach » hoc sach, nuoc sach, dac sac
ban hang » ngan hang
vai cua » dai cua, hai cua, lai cua
hieu ve » hieu va, hieu van
dang xa » dang xay, lang xa, dang ha
ky dang » ky nang, ky danh
ve cam » ve cham, ve cac, va cam
cua cu » cua chu, cua cau, cua su

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((toc sach) or (doc sach)) ky dang xa hoi. hieu ve cam xuc ((va thanh) or (ban hang)) vai cua cu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((toc sach) OR (doc sach)) ky dang xa hoi. hieu ve cam xuc ((va thanh) OR (ban hang)) vai cua cu.
• Adding a wildcard symbol may retrieve word variants: ((toc sach) or (doc sach)) ky dang xa hoi. hieu ve cam xuc ((va thanh) or (ban hang)) vai cua cu*.