Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"toc vong doi snippets" » "toc cong doi snippets", "tuc vong doi snippets", "toc mong doi snippets", "toc trong doi snippets", "toc huong doi snippets", "toc dung doi 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: (((("toc vong doi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("toc vong doi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( toc vong doi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("toc vong doi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.