Perhaps you should try some spelling variations:
thuong cong » thong cong, thuong con, thuong dong
theo chieu » theo tieu, ho chieu, theo chu
chieu xanh » chieu sach, chieu sang, chieu tinh
truong va » truong dai, truong cao, truong dao
trung va » trang va, trung tam, trung cap
trung ha » trung hoc, trung tam, trung cap
cong dan » cong san, cong tan, huong dan
dan toan » van toan, dan than, manh toan
toan cao » toan ban, toan tap

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

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