Perhaps you should try some spelling variations:
nhung phuong » nhu phuong, truong phuong, bang phuong
dung phuong » dung thuong, bang phuong, dung chung
hanh trung » thanh trung, hanh trang, manh trung
danh toan » manh toan, anh toan, dan toan
ho chieu » theo chieu, hoc thieu, doi chieu
doc hieu » toc thieu, hoc thieu, hoc hien
trung va » truong va, trang va, trung ha
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 (doc hieu)) sach - hanh trung va ((nhung phuong) OR (dung phuong)) danh toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (doc hieu)) sach - hanh trung va ((nhung phuong) OR (dung phuong)) danh toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho chieu) or (doc hieu)) sach - hanh trung va ((nhung phuong) OR (dung phuong)) danh toan cau".
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) or (doc hieu)) sach - hanh trung va ((nhung phuong) OR (dung phuong)) danh toan cau*.