Perhaps you should try some spelling variations:
hang tai » hang va, dung tai
duc tien » duc thien, luc tieng, thuc tien
su sach » so sach, vu sach
ky dang » ky danh
mau hoi » cau hoi, mai hoi, mau ho
tai duc » tai cuc, mai duc, tai du
va nam » van nam, ha nam, va nay
luc va » tuc va, loc va

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sach ((ky dang) OR (ky nang)) mau hoi. lieu va nam ((luc va) or (duc va)) hang tai duc tien~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ((ky dang) OR (ky nang)) mau hoi. lieu va nam ((luc va) OR (duc va)) hang tai duc tien.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ((ky dang) OR (ky nang)) mau hoi. lieu va nam ((luc va) or (duc va)) hang tai duc tien".
• Adding a wildcard symbol may retrieve word variants: su sach ((ky dang) OR (ky nang)) mau hoi. lieu va nam ((luc va) or (duc va)) hang tai duc tien*.