Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tu tien do snippets" » "tu tieng do snippets", "thu tien do snippets", "tu thien do snippets", "tu tien bo snippets", "tu bien do snippets", "tu tien dong 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 tien 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 tien do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tu tien do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tu tien do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.