Perhaps you should try some spelling variations:
canh manh » lanh manh, canh tranh, cach mang
ban duong » ban huong, ban tuong, bao duong
van duong » van dong, van dung, van phong
ho chieu » theo chieu, hoc thieu, doi chieu
thi hieu » thi chieu, thi hien, thi dieu
manh cua » doanh cua, ban cua
toan tap » toan ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((ho chieu) or (thi hieu)) xanh - canh manh cua ((ban duong) or (van duong)) tinh toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (thi hieu)) xanh - canh manh cua ((ban duong) OR (van duong)) tinh toan tap.
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) or (thi hieu)) xanh - canh manh cua ((ban duong) or (van duong)) tinh toan tap*.