Perhaps you should try some spelling variations:
thong tinh » thuong tinh, thong tin, thong minh
chuc danh » chuc nganh, thuc hanh, chuc nang
chua xang » chua nang, chuc nang, chu bang
hanh tang » hanh trang, anh tang, hanh mang
tong tinh » trong tinh, cong tinh, long tinh
tang cua » mang cua, hang cua, tang luan
cua nhan » ca nhan, cua ngan, cua nha
toan cau » toan cao, toan ban, toan tap

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

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