Perhaps you should try some spelling variations:
thanh trung » thanh tung
doc chieu » doi chieu, hoc thieu, duc chien
dung cong » dung trong
doc hieu » hoc thieu, hoc hien
trung ap » trung cap, trung lap, trung tam
cong tan » cong tac, cong san, cong thanh
tan toan » tan tran, tap toan, van toan
toan cau » toan cao, toan ban, toan tap
ap dung » xay dung, van dung

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((((doc chieu) OR (doc hieu))) or (toc thieu)) sach - thanh trung ap dung cong tan toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((((doc chieu) OR (doc hieu))) OR (toc thieu)) sach - thanh trung ap dung cong tan toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((doc chieu) OR (doc hieu))) or (toc thieu)) sach - thanh trung ap dung cong tan toan cau".
• Adding a wildcard symbol may retrieve word variants: ((((doc chieu) OR (doc hieu))) or (toc thieu)) sach - thanh trung ap dung cong tan toan cau*.