Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
hoc chinh » hoan chinh, hoc sinh, hoc kinh
canh sinh » canh binh, tinh sinh, dang sinh
canh tinh » hanh tinh, manh tinh, canh tranh
vat nhung » va nhung, vap nhung, vai nhung
cong dan » cong san, cong tan, huong dan
ca cau » cua cau, cac cau, can cau

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc chinh sach - ((canh sinh) or (canh tinh)) vat nhung cong dan ca cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chinh sach - ((canh sinh) OR (canh tinh)) vat nhung cong dan ca cau.
• Adding a wildcard symbol may retrieve word variants: hoc chinh sach - ((canh sinh) or (canh tinh)) vat nhung cong dan ca cau*.