Perhaps you should try some spelling variations:
nhung phuong » dung phuong, truong phuong, bang phuong
hanh trinh » canh tranh, hanh chinh
nhu phuong » thu phuong, thi phuong, thu huong
hieu sach » chieu sach, hieu cach, dien sach
doc hieu » toc thieu, hoc thieu, hoc hien
trinh va » trinh van, trinh vat, trinh ve
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: doc hieu sach - hanh trinh va ((nhung phuong) OR (nhu phuong)) doan ((doanh tai) or (toan cao))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc hieu sach - hanh trinh va ((nhung phuong) OR (nhu phuong)) doan ((doanh tai) OR (toan cao)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "doc hieu sach - hanh trinh va ((nhung phuong) OR (nhu phuong)) doan ((doanh tai) or (toan cao))".
• Adding a wildcard symbol may retrieve word variants: doc hieu sach - hanh trinh va ((nhung phuong) OR (nhu phuong)) doan ((doanh tai) or (toan cao))*.