Perhaps you should try some spelling variations:
chieu tinh » trieu tinh, lieu tinh, chau tinh
trinh toan » tinh toan, thanh toan, trinh han
hanh mang » nhanh mang, hanh trang, nhanh lang
cua thong » cua thuong, cua khong, cua tong
mang cua » manh cua, dung cua, ban cua
tin toan » tinh toan, nin toan, thien toan
ha tinh » va tinh, may tinh

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

• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu tinh) OR (ha tinh)) - hanh mang cua thong thong ((tin toan) OR (trinh toan)) cao~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu tinh) or (ha tinh)) - hanh mang cua thong thong ((tin toan) OR (trinh toan)) cao~".
• Adding a wildcard symbol may retrieve word variants: ho ((chieu tinh) or (ha tinh)) - hanh mang cua thong thong ((tin toan) OR (trinh toan)) cao*.