Perhaps you should try some spelling variations:
chieu tinh » trieu tinh, lieu tinh, chau tinh
thanh tinh » thanh binh, nhanh tinh, than kinh
nhung cong » thong cong, hang cong, nhung don
dung cong » dung trong
ho chieu » theo chieu, hoc thieu, doi chieu
tinh cua » trinh cua, sinh cua, tinh chat
toan tai » toan tap, doanh tai, toan cao
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 tinh cua ((nhung cong) OR (dung cong)) tan ((toan tai) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu tinh - thanh tinh cua ((nhung cong) OR (dung cong)) tan ((toan tai) OR (toan ban))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu tinh - thanh tinh cua ((nhung cong) OR (dung cong)) tan ((toan tai) or (toan ban))*".