Perhaps you should try some spelling variations:
nhung phuong » dung phuong, nhu phuong, truong phuong
nhung huong » nhung tuong, nhung cong, nhung dung
theo chieu » theo tieu, ho chieu, theo chu
chieu tinh » trieu tinh, lieu tinh, chau tinh
nhan dang » nhan dan, phan dang, tran dang
dan thanh » dang thanh, danh thanh, ban thanh
thanh tay » thanh tai, thanh toan, thanh thuy
anh tang » anh bang, anh dang, anh nang

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: theo chieu tinh - ((anh tang) or (nhan dang)) luan ((nhung huong) OR (nhung phuong)) dan thanh tay~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chieu tinh - ((anh tang) OR (nhan dang)) luan ((nhung huong) OR (nhung phuong)) dan thanh tay.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chieu tinh - ((anh tang) or (nhan dang)) luan ((nhung huong) OR (nhung phuong)) dan thanh tay".
• Adding a wildcard symbol may retrieve word variants: theo chieu tinh - ((anh tang) or (nhan dang)) luan ((nhung huong) OR (nhung phuong)) dan thanh tay*.