Perhaps you should try some spelling variations:
thanh trung » thanh tung
trung tuan » trung thanh, trung tam, tran tuan
trinh toan » tinh toan, trinh han, trinh quan
thanh toan » thanh hoa, thanh san, tinh toan
hoc thieu » toc thieu, hoc hien
tuan bang » tuan dang, tuan hoang, thuat bang
bang cong » dang cong, bang song, hang cong

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

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