Perhaps you should try some spelling variations:
thanh tung » thanh cong
doi chieu » doc hieu, doi chi, ho chieu
luong san » xuong san, duong san, luong quan
luong van » luong va, duong van, luong vat
thanh lap » thanh san, phan lap, thanh hai
tung cap » trung cap, cung cap, thong cap
cap hang » cap hoang, cap bang, cap han

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((doi chieu) or (theo tieu)) sach - thanh tung cap hang ((luong san) OR (luong van)) thanh lap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doi chieu) OR (theo tieu)) sach - thanh tung cap hang ((luong san) OR (luong van)) thanh lap*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((doi chieu) or (theo tieu)) sach - thanh tung cap hang ((luong san) OR (luong van)) thanh lap*".