Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nhac va do snippets" » "nhan va do snippets", "nha va do snippets", "thac va do snippets", "nhac va dao snippets", "nhac va doc snippets", "nhac va co 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: (((("nhac va 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: (((("nhac va do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nhac va do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nhac va do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.