Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
nhung cong » dung cong, thong cong, hang cong
trinh vat » trinh van, trinh luat, sinh vat
ho chieu » theo chieu, hoc thieu, doi chieu
trinh va » trinh van, trinh ve, trinh vi
cong van » cong vang, cong san, song van
toan tap » toan ban
han tap » han tai, nhan tai, nhan tao

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

• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu xanh - canh ((trinh va) OR (trinh vat)) nhung cong van ((han tap) OR (toan tap))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu xanh - canh ((trinh va) OR (trinh vat)) nhung cong van ((han tap) or (toan tap))~".
• Adding a wildcard symbol may retrieve word variants: ho chieu xanh - canh ((trinh va) OR (trinh vat)) nhung cong van ((han tap) or (toan tap))*.