Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dao dai son snippets" » "dat dai son snippets", "dao dan son snippets", "tao dai son snippets", "dao dai so snippets", "dao doi song snippets", "dao 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: (((("dao 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: (((("dao dai son snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dao dai son snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dao dai son snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.