Perhaps you should try some spelling variations:
thanh lap » thanh san, phan lap, thanh hai
su sach » so sach, vu sach
lap cua » lai cua, tap cua, lam cua
duc gia » quoc gia
hac duc » hoc duc, ha duc, thach duc
hieu ve » hieu va, hieu van
xay hoi » tay hoi, cay phoi, gay thoi
sach ky » sac ky, sach y, sach ty
ky dang » ky nang, ky danh
cua tu » cua tuc, cua su, cua cu

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 ((xay hoi) or (xa hoi)). ((hieu ve) or (lieu va)) hac duc gia thanh lap cua tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ky dang ((xay hoi) OR (xa hoi)). ((hieu ve) OR (lieu va)) hac duc gia thanh lap cua tu.
• Adding a wildcard symbol may retrieve word variants: su sach ky dang ((xay hoi) or (xa hoi)). ((hieu ve) or (lieu va)) hac duc gia thanh lap cua tu*.