Perhaps you should try some spelling variations:
thanh trung » thanh tung
chiet tach » chieu sach
nhung cong » dung cong, thong cong, hang cong
doi chiet » doi chieu, doi chi, doi viet
trung dap » trung cap, trung dai, trung dam
dap nhung » vap nhung, va nhung, dap ung
cong san » cong tac
than cua » nhan cua, thai cua, ban cua
khan cap » khan ap, than cap, khoan cam

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi chiet tach - thanh trung dap nhung cong san ((than cua) or (khan cap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chiet tach - thanh trung dap nhung cong san ((than cua) OR (khan cap)).
• Adding a wildcard symbol may retrieve word variants: doi chiet tach - thanh trung dap nhung cong san ((than cua) or (khan cap))*.