Perhaps you should try some spelling variations:
thong cong » trong cong, tong cong, thong thong
trinh toan » tinh toan, thanh toan, trinh han
canh tinh » hanh tinh, manh tinh, canh tranh
khao cuu » cham cuu, chao chu, kho cua
thai cua » than cua, tai cuc, tri cua
toan cau » toan cao, toan ban, toan tap
tinh he » trinh he, hinh he, tinh ha

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((khao cuu) or (thai cua)) tinh - canh tinh he thong cong trinh toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((khao cuu) OR (thai cua)) tinh - canh tinh he thong cong trinh toan cau.
• Adding a wildcard symbol may retrieve word variants: ((khao cuu) or (thai cua)) tinh - canh tinh he thong cong trinh toan cau*.