Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tuong so toc snippets" » "tuong ho toc snippets", "truong son toc snippets", "cong so toc snippets", "tuong so hoc snippets", "tuong co toc 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: (((("tuong so toc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tuong so toc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tuong so toc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tuong so toc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.