Perhaps you should try some spelling variations:
thong cong » trong cong, tong cong, thong thong
chua nang » chua xang, kha nang, cuu nang
tang luan » dung luan
tang cua » mang cua, hang cua, thong cua
cong nam » dong nam, uong nam, thong nam
nam toan » nam tan, tam toan, nam thanh
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: cho ((chua nang) OR (chuc nang)) - hanh ((tang cua) or (tang luan)) thong cong nam toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: cho ((chua nang) OR (chuc nang)) - hanh ((tang cua) OR (tang luan)) thong cong nam toan cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "cho ((chua nang) OR (chuc nang)) - hanh ((tang cua) or (tang luan)) thong cong nam toan cao".
• Adding a wildcard symbol may retrieve word variants: cho ((chua nang) OR (chuc nang)) - hanh ((tang cua) or (tang luan)) thong cong nam toan cao*.