Perhaps you should try some spelling variations:
cua thuong » cua truong, ca thuong, cua huong
cua phuong » cuu phuong, cuc phuong, luan phuong
hoc thieu » toc thieu, hoc hien
trinh han » trinh quan
minh toan » tinh toan, manh toan, minh tuan
ho chieu » theo chieu, doi chieu, mot chieu
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 (hoc thieu)) xanh - trinh han ((cua thuong) OR (cua phuong)) hoang minh toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (hoc thieu)) xanh - trinh han ((cua thuong) OR (cua phuong)) hoang minh toan cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho chieu) or (hoc thieu)) xanh - trinh han ((cua thuong) OR (cua phuong)) hoang minh toan cao".
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) or (hoc thieu)) xanh - trinh han ((cua thuong) OR (cua phuong)) hoang minh toan cao*.