Perhaps you should try some spelling variations:
dung phuong » dung thuong, bang phuong, dung chung
phuong danh » phuong anh, phuong dinh, phuong hanh
trinh quan » tinh quang, trinh luat, trinh han
trinh cua » tinh cua, trinh luat, trinh luan
danh toan » manh toan, anh toan, dan toan
ho chieu » theo chieu, hoc thieu, doi chieu
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: ((ho chieu) or (theo tieu)) xanh - hanh ((trinh cua) OR (trinh quan)) dung phuong danh toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (theo tieu)) xanh - hanh ((trinh cua) OR (trinh quan)) dung phuong danh toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho chieu) or (theo tieu)) xanh - hanh ((trinh cua) OR (trinh quan)) dung phuong danh toan cau".
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) or (theo tieu)) xanh - hanh ((trinh cua) OR (trinh quan)) dung phuong danh toan cau*.