Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thiet lap do snippets" » "thuat lap do snippets", "thiet hai do snippets", "khien lap do snippets", "thiet lap doi snippets", "thiet lap doc snippets", "thiet cap 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: (((("thiet lap 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: (((("thiet lap do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thiet lap do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thiet lap do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.