Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"toc vung moc snippets" » "toc nung moc snippets", "toc muong moc snippets", "nuoc vung moc snippets", "toc dung mo snippets", "toc dung mot snippets", "toc dung moi 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 vung moc 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 vung moc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( toc vung moc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("toc vung moc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.