Perhaps you should try some spelling variations:
canh trang » canh tranh, banh trang, thanh trang
hanh trang » thanh trung, canh tranh, hanh trinh
hoc trieu » hoc thieu, hoc tieu, hoc dieu
dung cong » dung trong
cong dan » cong san, cong tan, huong dan
phan cau » phan dau, phan tu, phan lap
phan cac » nhan cach, phan dau, phan lap
va dung » van dung, va duong, vat dung

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

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