Perhaps you should try some spelling variations:
nhung phuong » dung phuong, nhu phuong, truong phuong
thuoc dieu » thuc dieu, hoc dieu, thuat dieu
hanh trinh » canh tranh, hanh chinh
phuong dan » phuong danh, phuong doan, huong dan
trinh va » trinh van, trinh vat, trinh ve
than cao » thai cao, than cap, than sao
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: thuoc dieu hanh - hanh trinh va nhung phuong dan ((than cao) or (toan cao))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuoc dieu hanh - hanh trinh va nhung phuong dan ((than cao) OR (toan cao)).
• Adding a wildcard symbol may retrieve word variants: thuoc dieu hanh - hanh trinh va nhung phuong dan ((than cao) or (toan cao))*.