Perhaps you should try some spelling variations:
thien thanh » tien thanh, thi thanh, hien hanh
hien nhanh » hien hanh, tien thanh, dien thanh
thanh long » thanh cong, thang long, thanh huong
tranh ha » thanh ha, trang ha, trinh ha
ha thanh » va thanh, pham thanh, phan thanh
long dan » long doan, cong dan, nong dan
dan phan » doan phan, dan chan, van phan
phan cam » phan cac, phan cau, khoan cam

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 nhanh) or (thien thanh)) - canh tranh ha thanh long dan phan cam~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hien nhanh) OR (thien thanh)) - canh tranh ha thanh long dan phan cam.
• Adding a wildcard symbol may retrieve word variants: hoc ((hien nhanh) or (thien thanh)) - canh tranh ha thanh long dan phan cam*.