Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"hoc anh tet snippets" » "hoc nganh tet snippets", "hoc nhanh tet snippets", "hoc sinh tet snippets", "hoc anh tuyet snippets", "hoc hanh tiet snippets", "hoc anh viet snippets", "hoc anh tet slippers"
"locating bug code snippets" » "locating bug code slippers", "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"hoc anh tet snippets\") OR (\"python using java snippets\"))) OR (\"locating bug code snippets\"))~".
• Removing quotes may allow a broader search: (((( hoc anh tet snippets ) OR ( python using java snippets ))) OR ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("hoc anh tet snippets") OR ("python using java snippets"))) OR ("locating bug code snippets"))*.