Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"leng ly hanh snippets" » "leng y hanh snippets", "leng ly anh snippets", "leng ly hang snippets", "leng lu hanh snippets", "leng ly hanh slippers"
"locating bug code snippets" » "locating bug code slippers", "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: (((("leng ly hanh snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("leng ly hanh snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( leng ly hanh snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("leng ly hanh snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.