Perhaps you should try some spelling variations:
phuong trinh » chuong trinh, cong trinh, huong tran
hanh trinh » canh tranh
chu phuong » cuu phuong, thu phuong, cau phuong
trinh toan » tinh toan, thanh toan, trinh han
doc hieu » toc thieu, hoc thieu, hoc hien
toan cao » toan ban, toan tap
doi chi » doi khi
cua chu » sua chua

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((doc hieu) or (doi chi)) xanh - ((hanh trinh) OR (hanh chinh)) cua chu phuong trinh toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doc hieu) OR (doi chi)) xanh - ((hanh trinh) OR (hanh chinh)) cua chu phuong trinh toan cao*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((doc hieu) or (doi chi)) xanh - ((hanh trinh) OR (hanh chinh)) cua chu phuong trinh toan cao*".