Perhaps you should try some spelling variations:
cong thanh » dong thanh, cong trinh, cong tan
hien danh » thien danh, hien hanh, hien nhanh
thuc hung » thuc chung, thuc nhung, thuc vung
thuc cung » thuc chung, thuc vung, tuc cung
thuc dung » thuoc dung, thuy dung, tuc dung
san lap » sang lap, dan lap, sai lap

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 - tinh toan ((((thuc hung) or (thuc cung))) or (thuc dung)) cong thanh san lap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien danh - tinh toan ((((thuc hung) OR (thuc cung))) OR (thuc dung)) cong thanh san lap.
• Adding a wildcard symbol may retrieve word variants: hoc hien danh - tinh toan ((((thuc hung) or (thuc cung))) or (thuc dung)) cong thanh san lap*.