Perhaps you should try some spelling variations:
thanh trung » thanh tung
truong dong » trong dong, truong dang, tuong dong
cua truong » cua trung, xuan truong, cac truong
hien xanh » hien hanh, hien nhanh, chieu xanh
trung cua » truong cua, trung tuan, trung cap
dong manh » duong manh, dong anh, dang manh

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 - thanh trung cua truong dong manh ((toan ban) or (van ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien xanh - thanh trung cua truong dong manh ((toan ban) OR (van ban)).
• Adding a wildcard symbol may retrieve word variants: hoc hien xanh - thanh trung cua truong dong manh ((toan ban) or (van ban))*.