Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phu dau do snippets" » "phi dau do snippets", "phu da do snippets", "pho dau do snippets", "phu cau do snippets", "phu dau co snippets", "phu dao do 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: (((("phu dau do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("phu dau do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phu dau do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phu dau do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.