Perhaps you should try some spelling variations:
nhung phuong » dung phuong, nhu phuong, truong phuong
hanh trinh » canh tranh, hanh chinh
phuong dan » phuong danh, phuong doan, huong dan
doi chinh » do chinh, tai chinh, hoc chinh
trinh vat » trinh van, trinh luat, sinh vat
vat nhung » va nhung, vap nhung, vai nhung
toan tap » toan ban
toan cao » toan ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi chinh sach - hanh trinh vat nhung phuong dan ((toan tap) or (((toan cao) or (van ban))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chinh sach - hanh trinh vat nhung phuong dan ((toan tap) OR (((toan cao) OR (van ban)))).
• Adding a wildcard symbol may retrieve word variants: doi chinh sach - hanh trinh vat nhung phuong dan ((toan tap) or (((toan cao) or (van ban))))*.