Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
chieu xanh » chieu sach, chieu sang, chieu tinh
nhung cong » dung cong, thong cong, hang cong
cua nhung » va nhung
dang thai » dang thi, dang hai, dang khai
anh tang » anh bang, anh dang, anh sang
anh nang » ganh nang, anh bang, anh dang
dan thai » dan thi, dan than, ban thai

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: theo chieu xanh - ((anh tang) OR (anh nang)) cua nhung cong ((dan thai) OR (dang thai)) cao~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chieu xanh - ((anh tang) or (anh nang)) cua nhung cong ((dan thai) OR (dang thai)) cao~".
• Adding a wildcard symbol may retrieve word variants: theo chieu xanh - ((anh tang) or (anh nang)) cua nhung cong ((dan thai) OR (dang thai)) cao*.