Perhaps you should try some spelling variations:
cong ngang » cong nhan, cong quang, cong lang
theo chua » theo chu, ho chua, cheo cua
chua xang » chua nang, chuc nang, chu bang
trinh van » trinh han, trinh quan, trinh toan
dung cong » dung trong
trinh va » trinh vat, trinh ve, trinh vi
toan cau » toan ban, toan tap, toan tai
toan cao » toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo chua xang - hanh ((trinh va) or (trinh van)) dung cong ngang ((toan cau) or (toan cao))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chua xang - hanh ((trinh va) OR (trinh van)) dung cong ngang ((toan cau) OR (toan cao)).
• Adding a wildcard symbol may retrieve word variants: theo chua xang - hanh ((trinh va) or (trinh van)) dung cong ngang ((toan cau) or (toan cao))*.