Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"luc cho nghe snippets" » "luc cheo nghe snippets", "luc chon nghe snippets", "luc kho nghe snippets", "luc cao nghe snippets", "nuoc cho nghe snippets", "luat cho nghe 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: (((("luc cho nghe snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("luc cho nghe snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( luc cho nghe snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("luc cho nghe snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.