Perhaps you should try some spelling variations:
nhung phuong » dung phuong, nhu phuong, truong phuong
hien nhanh » hien hanh, thien thanh, tien thanh
thanh cung » thanh cuong, thanh tung, thanh hung
phuong dan » phuong danh, phuong doan, huong dan
hien xanh » hien hanh, chieu xanh, hien khanh
ca nhung » cua nhung, cam nhung, va nhung
dan phan » doan phan, dan chan, van phan

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) or (hien nhanh)) - ((thanh cung) OR (thanh cong)) ca nhung phuong dan phan tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hien xanh) OR (hien nhanh)) - ((thanh cung) OR (thanh cong)) ca nhung phuong dan phan tu.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((hien xanh) or (hien nhanh)) - ((thanh cung) OR (thanh cong)) ca nhung phuong dan phan tu".
• Adding a wildcard symbol may retrieve word variants: hoc ((hien xanh) or (hien nhanh)) - ((thanh cung) OR (thanh cong)) ca nhung phuong dan phan tu*.