Perhaps you should try some spelling variations:
thien tinh » khien tinh, thien minh, tien tinh
manh trung » manh tung, thanh trung, manh hung
hien tinh » khien tinh, bien tinh, dien tinh
trung cua » truong cua, trung tuan, trung cap
tong cong » trong cong, cong cong, dung cong
cong vinh » cong trinh, trong vinh, cong viec
vinh toan » tinh toan, hinh toan, minh toan
cua tong » cua cong, cua dong, cua nong
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: hoc ((hien tinh) or (thien tinh)) - manh trung cua tong cong vinh toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hien tinh) OR (thien tinh)) - manh trung cua tong cong vinh toan cau.
• Adding a wildcard symbol may retrieve word variants: hoc ((hien tinh) or (thien tinh)) - manh trung cua tong cong vinh toan cau*.