Perhaps you should try some spelling variations:
thanh khung » thanh hung, thanh chuong, thanh phuong
khung cua » chung cua, khung luan, chung cu
nong cong » cong cong, tong cong, nang cong
cong manh » cong danh, duong manh, cong thanh
manh toan » thanh toan, anh tuan, tinh toan
cua nong » cua cong, cuu nong, cua dong
toan ban » van ban

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) or (toc thieu)) tinh - thanh khung cua nong cong manh toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc hien) OR (toc thieu)) tinh - thanh khung cua nong cong manh toan ban.
• Adding a wildcard symbol may retrieve word variants: ((hoc hien) or (toc thieu)) tinh - thanh khung cua nong cong manh toan ban*.