Perhaps you should try some spelling variations:
lieu tinh » trieu tinh, diep tinh, bien tinh
trinh cua » tinh cua, trinh quan, trinh luan
dung cong » dung trong
cong tac » cong ty
toan cau » toan cao, toan tap, toan tai
toan ban » van ban
ho lieu » so lieu, co lieu, ho kieu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho lieu tinh - hanh ((trinh cua) or (trinh luat)) dung cong tac ((toan cau) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho lieu tinh - hanh ((trinh cua) OR (trinh luat)) dung cong tac ((toan cau) OR (toan ban)).
• Adding a wildcard symbol may retrieve word variants: ho lieu tinh - hanh ((trinh cua) or (trinh luat)) dung cong tac ((toan cau) or (toan ban))*.