Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hung dai son snippets" » "hung dao son snippets", "hung dam son snippets", "hung dan son snippets", "hung dai so snippets", "hung doi song snippets", "hung thai son 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: (((("hung dai son snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hung dai son snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hung dai son snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hung dai son snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.