Perhaps you should try some spelling variations:
nhung phuong » dung phuong, nhu phuong, truong phuong
phuong dan » phuong danh, phuong doan, huong dan
hien xanh » hien hanh, hien nhanh, chieu xanh
thanh cac » hanh cac, thanh bac, thanh ca
trung ha » trung hoc, trung cap
than cau » toan cau, phan cau, than cap

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc hien xanh - hanh ((trung ha) OR (trung tam)) nhung phuong dan ((than cau) or (thanh cac))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien xanh - hanh ((trung ha) OR (trung tam)) nhung phuong dan ((than cau) OR (thanh cac)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc hien xanh - hanh ((trung ha) OR (trung tam)) nhung phuong dan ((than cau) or (thanh cac))".
• Adding a wildcard symbol may retrieve word variants: hoc hien xanh - hanh ((trung ha) OR (trung tam)) nhung phuong dan ((than cau) or (thanh cac))*.