Perhaps you should try some spelling variations:
hung thang » cang thang, hung tran
trinh toan » tinh toan, thanh toan, trinh han
hanh hang » thanh hang, hang hang, hanh han
theo tin » thao tin, theo tieu, theo tcvn
tin nang » tin dung, ki nang, thi nang
cua tong » cua cong, cua nong, cua song
cua dong » chua dong, cua cong, cua dang
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 tin nang - ((hanh hang) or (hung thang)) ((cua tong) OR (cua dong)) cong trinh toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo tin nang - ((hanh hang) OR (hung thang)) ((cua tong) OR (cua dong)) cong trinh toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo tin nang - ((hanh hang) or (hung thang)) ((cua tong) OR (cua dong)) cong trinh toan cau".
• Adding a wildcard symbol may retrieve word variants: theo tin nang - ((hanh hang) or (hung thang)) ((cua tong) OR (cua dong)) cong trinh toan cau*.