Perhaps you should try some spelling variations:
thieu hanh » thien thanh, thien chanh, thieu khang
trung cua » truong cua, trung tuan, dung cua
trung cap » truong cao, trung tam
dung cong » dung trong
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: toc thieu hanh - thanh ((trung cua) or (trung cap)) dung cong tac toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc thieu hanh - thanh ((trung cua) OR (trung cap)) dung cong tac toan cau.
• Adding a wildcard symbol may retrieve word variants: toc thieu hanh - thanh ((trung cua) or (trung cap)) dung cong tac toan cau*.