Perhaps you should try some spelling variations:
hien nhanh » hien hanh, thien thanh, tien thanh
thanh tung » thanh cong
chong cong » cong cong, thong cong, cuong cong
vang thanh » van thanh, dang thanh, tang thanh
hien danh » thien danh, hien hanh, hien khanh
cua chong » cua cong, cua chung, cua khong
cong vang » cong lang, cong quang, cong ngang
thanh lap » thanh san, phan lap, thanh hai
tung cua » trung cua, tuong cua, dung cua

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 danh) or (hien nhanh)) - thanh tung cua chong cong vang thanh lap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hien danh) OR (hien nhanh)) - thanh tung cua chong cong vang thanh lap.
• Adding a wildcard symbol may retrieve word variants: hoc ((hien danh) or (hien nhanh)) - thanh tung cua chong cong vang thanh lap*.