Perhaps you should try some spelling variations:
thang cong » thanh cong, thang long, thong cong
cong thanh » dong thanh, cong trinh, cong tan
hoc thieu » toc thieu, hoc hien
trung nam » trong nam, trung cap, trung ha
thanh van » thanh san, thanh toan, thanh phan
theo chu » theo chieu, cho chu, chao chu

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

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