Perhaps you should try some spelling variations:
chieu tinh » trieu tinh, lieu tinh, chau tinh
trung lap » trung cap, truong lam, truong lop
dung cong » dung trong
ho chieu » theo chieu, hoc thieu, doi chieu
trung ap » trung cap, trung tam, trung dai
cong tac » cong ty
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 tinh - thanh ((trung ap) OR (trung lap)) dung cong tac ((toan tap) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu tinh - thanh ((trung ap) OR (trung lap)) dung cong tac ((toan tap) OR (toan ban))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu tinh - thanh ((trung ap) OR (trung lap)) dung cong tac ((toan tap) or (toan ban))*".