Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dung hue voi snippets" » "dung he voi snippets", "dung huyen voi snippets", "dung hieu voi snippets", "dung quen voi snippets", "dung chua 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: (((("dung hue 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: (((("dung hue voi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung hue voi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung hue voi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.