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