Perhaps you should try some spelling variations:
thanh trung » thanh tung
thuc hien » hoc hien
hien danh » thien danh, hien hanh, hien nhanh
thuat dam » thuat cam, thuat do, thuat bai
cua rung » cua trung, cua rang, cua truong
cua dong » chua dong, cua cong, cua dang
cong va » dong va, cong ha, cong tac

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: thuc hien danh - thanh trung ((cua rung) or (cua dong)) cong va ((thuat dam) or (thuat xay))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuc hien danh - thanh trung ((cua rung) OR (cua dong)) cong va ((thuat dam) OR (thuat xay)).
• Adding a wildcard symbol may retrieve word variants: thuc hien danh - thanh trung ((cua rung) or (cua dong)) cong va ((thuat dam) or (thuat xay))*.