Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cach van toc snippets" » "cac van toc snippets", "bach van toc snippets", "canh van toc snippets", "cach van hoc snippets", "cach dan toc snippets", "cach van toi 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: (((("cach van 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: (((("cach van toc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cach van toc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cach van toc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.