Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hat tao canh snippets" » "hat tao anh snippets", "hat tao can snippets", "hat tao danh snippets", "hat dao canh snippets", "hat gao canh snippets", "hat 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: (((("hat 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: (((("hat tao canh snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hat tao canh snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hat tao canh snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.