Perhaps you should try some spelling variations:
trong trong » trong truong, truong trong, thong trong
tang quan » tang luan, tong quan, thong quan
nang quan » ban quan, nang suat
trong van » trong cac
chi tach » chiu trach, chiet tach, chi thanh
doi chi » doi khi
tan cao » toan cao, tay cao, tan ca
tao cao » bao cao, toan cao

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 quan) or (nang quan)) trong trong van ((tan cao) or (tao cao))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chi tach - hanh ((tang quan) OR (nang quan)) trong trong van ((tan cao) OR (tao cao)).
• Adding a wildcard symbol may retrieve word variants: doi chi tach - hanh ((tang quan) or (nang quan)) trong trong van ((tan cao) or (tao cao))*.