Perhaps you should try some spelling variations:
canh trinh » canh tranh, hanh trinh, canh tinh
trinh suat » trinh luat, trinh sat, trinh quan
suat trong » suat thong, luat trong, thuat trong
tieu tinh » trieu tinh, tieu trinh, lieu tinh
cong tac » cong ty
tac toan » tap toan, tam toan, hach toan
toan cau » 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 tieu tinh - canh trinh suat trong cong tac toan cau~.
• Adding a wildcard symbol may retrieve word variants: theo tieu tinh - canh trinh suat trong cong tac toan cau*.