Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hoc tao canh snippets" » "hoc tao anh snippets", "hoc tao can snippets", "hoc tao danh snippets", "hoc cao canh snippets", "hoc tap canh snippets", "hoc tai canh snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

Try widening your search to All Fields.

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((("hoc tao canh snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hoc tao canh snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hoc tao canh snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hoc tao canh snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.