Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
trinh toan » tinh toan, thanh toan, trinh quan
nhung cong » dung cong, thong cong, hang cong
trinh han » trinh quan
cong toan » cong tan, cong hoan, cong tuan
toan phan » thanh phan, toan ban, hoa phan
ho chieu » theo chieu, hoc thieu, doi chieu

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 xanh - canh ((trinh toan) or (trinh han)) nhung cong toan phan tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu xanh - canh ((trinh toan) OR (trinh han)) nhung cong toan phan tu.
• Adding a wildcard symbol may retrieve word variants: ho chieu xanh - canh ((trinh toan) or (trinh han)) nhung cong toan phan tu*.