Perhaps you should try some spelling variations:
trinh tinh » trinh kinh, trinh dinh, trinh sinh
nhung cong » dung cong, thong cong, hang cong
trinh tin » trinh kinh, trinh toan, trinh tu
thang cua » thong cua, hang cua, than cua
tranh cua » doanh cua, manh cua
cong dan » cong san, cong tan, huong dan
dan nhan » danh nhan, dan chan, van nhan
nhan tai » hang tai, van tai, toan tai

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi ((trinh tinh) OR (trinh tin)) - hanh ((thang cua) or (tranh cua)) nhung cong dan nhan tai~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi ((trinh tinh) OR (trinh tin)) - hanh ((thang cua) OR (tranh cua)) nhung cong dan nhan tai.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi ((trinh tinh) OR (trinh tin)) - hanh ((thang cua) or (tranh cua)) nhung cong dan nhan tai".
• Adding a wildcard symbol may retrieve word variants: doi ((trinh tinh) OR (trinh tin)) - hanh ((thang cua) or (tranh cua)) nhung cong dan nhan tai*.