Perhaps you should try some spelling variations:
van thanh » ban thanh, van tuan
thanh loi » thanh hoa, thanh hai, thanh lap
danh dat » danh bat, dinh dat, danh dau
thi cong » tai cong, thien cong
dan dat » dung dat, dong dat, dinh dat
su sach » so sach
thi van » thi lan, thi hanh, thi nang
cong xa » cong xay, cong xua, cong ha
vu sach » vu bach, vu khach
cau tre » cau tren, cau treo, cau tra
loi va » loai va, hoi va, noi 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) or (vu sach)) thi cong xa hoi. thi van thanh loi va ((danh dat) OR (dan dat)) cau tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sach) OR (vu sach)) thi cong xa hoi. thi van thanh loi va ((danh dat) OR (dan dat)) cau tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((su sach) or (vu sach)) thi cong xa hoi. thi van thanh loi va ((danh dat) OR (dan dat)) cau tre".
• Adding a wildcard symbol may retrieve word variants: ((su sach) or (vu sach)) thi cong xa hoi. thi van thanh loi va ((danh dat) OR (dan dat)) cau tre*.