Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"luan da voi snippets" » "luan dac voi snippets", "luan day voi snippets", "luan va voi snippets", "luan dao voi snippets", "luan dua voi snippets", "luan ba voi 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: (((("luan da voi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("luan da voi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( luan da voi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("luan da voi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.