Perhaps you should try some spelling variations:
thanh tung » thanh cong
hien manh » hien hanh, tien manh, hieu manh
cua thong » cua thuong, cua khong, cua tong
tuong dan » huong dan, tung dan, truong dai
xuong dan » huong dan, xuong san, nguong dan
tung cua » trung cua, tuong cua, dung cua
can cau » van cau, ban cau, ca cau

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 manh - thanh tung cua thong ((tuong dan) or (xuong dan)) can cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien manh - thanh tung cua thong ((tuong dan) OR (xuong dan)) can cau.
• Adding a wildcard symbol may retrieve word variants: hoc hien manh - thanh tung cua thong ((tuong dan) or (xuong dan)) can cau*.