Perhaps you should try some spelling variations:
cong thanh » dong thanh, cong trinh, cong tan
nhung cong » dung cong, thong cong, hang cong
cua nhung » va nhung
theo cuu » theo chu, khao cuu, thao cua
anh mang » hanh mang, anh bang, anh dang
mang cua » manh cua, dung cua, ban cua
toan tai » doanh tai, toan cao, von tai
toan ban » van ban

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 van - anh mang cua nhung cong thanh ((((toan tai) OR (toan ban))) or (toan tap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo cuu van - anh mang cua nhung cong thanh ((((toan tai) OR (toan ban))) OR (toan tap)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo cuu van - anh mang cua nhung cong thanh ((((toan tai) OR (toan ban))) or (toan tap))".
• Adding a wildcard symbol may retrieve word variants: theo cuu van - anh mang cua nhung cong thanh ((((toan tai) OR (toan ban))) or (toan tap))*.