Perhaps you should try some spelling variations:
hanh trung » thanh trung, manh trung, danh trung
hanh trang » thanh trung, canh tranh, hanh trinh
dung cong » dung trong
cua tinh » va tinh, ha tinh, hoa tinh
cua sinh » hoa sinh, va sinh
cong dan » cong san, cong tan, huong dan
ap dung » xay dung, van dung
dan van » dang van, doan van, dao van

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

• Performing a fuzzy search may retrieve terms with similar spellings: do ((cua tinh) OR (cua sinh)) - ((hanh trung) or (hanh trang)) ap dung cong dan van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: do ((cua tinh) OR (cua sinh)) - ((hanh trung) OR (hanh trang)) ap dung cong dan van ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "do ((cua tinh) OR (cua sinh)) - ((hanh trung) or (hanh trang)) ap dung cong dan van ban".
• Adding a wildcard symbol may retrieve word variants: do ((cua tinh) OR (cua sinh)) - ((hanh trung) or (hanh trang)) ap dung cong dan van ban*.