Perhaps you should try some spelling variations:
chi tach » chiu trach, chiet tach, chi thanh
tang hai » hang hai, tang tai, dang hai
cong dan » cong san, cong tan, huong dan
toan cau » toan cao, toan tap, toan tai
toan ban » van ban
doi chi » doi khi
tang ha » lang ha, tang ma, trung ha

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi chi tach - hanh ((tang hai) OR (tang ha)) trong cong dan ((toan cau) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chi tach - hanh ((tang hai) OR (tang ha)) trong cong dan ((toan cau) OR (toan ban)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chi tach - hanh ((tang hai) OR (tang ha)) trong cong dan ((toan cau) or (toan ban))".
• Adding a wildcard symbol may retrieve word variants: doi chi tach - hanh ((tang hai) OR (tang ha)) trong cong dan ((toan cau) or (toan ban))*.