Perhaps you should try some spelling variations:
"python using java slippers" » "python using data slippers", "python using java slippery", "python using java grippers"
"toc du hanh snippets" » "toc dieu hanh snippets", "toc luu hanh snippets", "toc de thanh snippets", "toc pu hanh snippets", "toc do hanh snippets", "hoc du hanh 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 du hanh snippets") or ("python using java slippers"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("toc du hanh snippets") OR ("python using java slippers"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( toc du hanh snippets ) or ( python using java slippers ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("toc du hanh snippets") or ("python using java slippers"))) or ("locating bug code snippets"))*.