Perhaps you should try some spelling variations:
chieu tinh » trieu tinh, lieu tinh, chau tinh
nhung cong » dung cong, thong cong, hang cong
van trang » vang trang, van thang, va trang
ho chieu » theo chieu, hoc thieu, doi chieu
dung cua » dung luan, dung cho
van tang » van thang, van nang, van tan
cong cu » chung cu

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 - hanh ((cong cu) or (dung cua)) nhung cong ((van tang) OR (van trang)) ca~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu tinh - hanh ((cong cu) OR (dung cua)) nhung cong ((van tang) OR (van trang)) ca.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu tinh - hanh ((cong cu) or (dung cua)) nhung cong ((van tang) OR (van trang)) ca".
• Adding a wildcard symbol may retrieve word variants: ho chieu tinh - hanh ((cong cu) or (dung cua)) nhung cong ((van tang) OR (van trang)) ca*.