Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tu kham do snippets" » "vu kham do snippets", "tu cham do snippets", "tu tham do snippets", "tu kham da snippets", "tu khac do snippets", "tu pham 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: (((("tu kham 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: (((("tu kham do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tu kham do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tu kham do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.