Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
nhung cong » dung cong, hang cong, nhung don
thong cong » trong cong, tong cong, thong thong
thanh ban » thanh san, thanh van, thanh bac
tan toan » tan tran, tap toan, van toan
toan cao » toan ban, toan tap
tinh » trinh, dinh, minh

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((cuu tinh) or (chieu sach)) - thanh ban va ((nhung cong) or (thong cong)) tan toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((cuu tinh) OR (chieu sach)) - thanh ban va ((nhung cong) OR (thong cong)) tan toan cao.
• Adding a wildcard symbol may retrieve word variants: theo ((cuu tinh) or (chieu sach)) - thanh ban va ((nhung cong) or (thong cong)) tan toan cao*.