Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
chieu xanh » chieu sach, chieu sang, chieu tinh
cong thanh » dong thanh, cong trinh, cong tan
hanh tang » hanh trang, anh tang, hanh mang
cong tac » cong ty
toan tai » toan tap, doanh tai, toan cao
toan ban » van ban
tang va » trang va, tang van, thang va

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 - hanh tang va nhung ((cong thanh) OR (cong tac)) ((toan tai) OR (toan ban))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chieu xanh - hanh tang va nhung ((cong thanh) OR (cong tac)) ((toan tai) OR (toan ban))".
• Adding a wildcard symbol may retrieve word variants: theo chieu xanh - hanh tang va nhung ((cong thanh) OR (cong tac)) ((toan tai) OR (toan ban))*.