Perhaps you should try some spelling variations:
qua trong » quan trong, qua trinh, qua song
cong tinh » cong trinh, cong vinh, long tinh
ho chieu » theo chieu, hoc thieu, doi chieu
theo chu » theo chieu, cho chu, chao chu
toan cao » toan ban, toan tap
anh ban » anh bang, anh bai, anh van
anh va » hanh va

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) OR (theo chu)) xanh - ((anh ban) OR (anh va)) qua trong cong tinh toan cao~.
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) or (theo chu)) xanh - ((anh ban) or (anh va)) qua trong cong tinh toan cao*.