Perhaps you should try some spelling variations:
nhung phuong » dung phuong, nhu phuong, truong phuong
hanh trinh » canh tranh, hanh chinh
hanh tranh » canh tranh, hanh trang, lanh tranh
lieu tinh » trieu tinh, diep tinh, bien tinh
cua nhung » va nhung
phuong do » phuong de, phuong dong, phuong doan
cot lieu » co lieu, vat lieu, so lieu
do van » dao van, vo van, so van

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

• Performing a fuzzy search may retrieve terms with similar spellings: cot lieu tinh - ((hanh tranh) or (hanh trinh)) cua nhung phuong do van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: cot lieu tinh - ((hanh tranh) OR (hanh trinh)) cua nhung phuong do van ban.
• Adding a wildcard symbol may retrieve word variants: cot lieu tinh - ((hanh tranh) or (hanh trinh)) cua nhung phuong do van ban*.