Perhaps you should try some spelling variations:
nhung phuong » dung phuong, truong phuong, bang phuong
chiet tach » chieu sach
hanh trang » thanh trung, canh tranh, hanh trinh
nhu phuong » thu phuong, thi phuong, thu huong
trang cua » tranh cua, tang cua, trung cua
manh toan » thanh toan, anh tuan, tinh toan
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: hoc ((chiet tach) or (chinh sach)) - hanh trang cua ((nhung phuong) OR (nhu phuong)) manh toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((chiet tach) OR (chinh sach)) - hanh trang cua ((nhung phuong) OR (nhu phuong)) manh toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((chiet tach) or (chinh sach)) - hanh trang cua ((nhung phuong) OR (nhu phuong)) manh toan cau".
• Adding a wildcard symbol may retrieve word variants: hoc ((chiet tach) or (chinh sach)) - hanh trang cua ((nhung phuong) OR (nhu phuong)) manh toan cau*.