Perhaps you should try some spelling variations:
thong cong » trong cong, tong cong, thong thong
nhung cong » dung cong, hang cong, nhung don
chua xang » chua nang, chu bang, chua dong
hanh tang » hanh trang, anh tang, hanh mang
tang cua » mang cua, hang cua, tang luan
toan cao » toan ban, toan tap
chuc » thuc, chu, phuc

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((chua xang) OR (chuc nang)) - hanh tang cua ((nhung cong) or (thong cong)) tinh toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chua xang) OR (chuc nang)) - hanh tang cua ((nhung cong) OR (thong cong)) tinh toan cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chua xang) OR (chuc nang)) - hanh tang cua ((nhung cong) or (thong cong)) tinh toan cao".
• Adding a wildcard symbol may retrieve word variants: theo ((chua xang) OR (chuc nang)) - hanh tang cua ((nhung cong) or (thong cong)) tinh toan cao*.