Perhaps you should try some spelling variations:
thanh trung » thanh tung
trung tuan » trung thanh, trung tam, tran tuan
hieu xanh » chieu xanh, hieu nganh, dieu hanh
hieu manh » chieu xanh, hieu nganh, dieu hanh
tuan dang » tran dang, tuan bang, tuan dung
dang cong » dung cong
cong tan » cong tac, cong san, cong thanh
toan cau » toan cao, toan ban, toan tai
toan tap » toan ban

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

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