Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"than voi moi snippets" » "than vo moi snippets", "tan voi moi snippets", "than roi moi snippets", "than doi moi snippets", "than voi doi 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: (((("than voi moi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("than voi moi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( than voi moi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("than voi moi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.