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