Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hat noi nghe snippets" » "hat voi nghe snippets", "hat gioi nghe snippets", "hat nuoc nghe snippets", "ha noi nghe snippets", "hat doi nghe snippets", "hay noi nghe 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 noi nghe 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 noi nghe snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hat noi nghe snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hat noi nghe snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.