Perhaps you should try some spelling variations:
chieu lang » chieu sang, hieu lang, chi lang
nhung cong » dung cong, thong cong, hang cong
trung dap » trung dai, trung dam, trung lap
trung cap » truong cao, trung tam
ho chieu » theo chieu, hoc thieu, doi chieu
cong san » cong tac
toan cao » toan tap
toan ban » van ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho chieu lang - hanh ((trung dap) OR (trung cap)) nhung cong san ((toan cao) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu lang - hanh ((trung dap) OR (trung cap)) nhung cong san ((toan cao) OR (toan ban)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu lang - hanh ((trung dap) OR (trung cap)) nhung cong san ((toan cao) or (toan ban))".
• Adding a wildcard symbol may retrieve word variants: ho chieu lang - hanh ((trung dap) OR (trung cap)) nhung cong san ((toan cao) or (toan ban))*.