Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dich va can snippets" » "dich vu can snippets", "tich va can snippets", "dinh van can snippets", "dich va chan snippets", "dich va cac snippets", "dich va cao 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: (((("dich va can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dich va can snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dich va can snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dich va can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.