Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"luc khoi tre snippets" » "buoc khoi tre snippets", "cuoc khoi tre snippets", "phuc khoi tre snippets", "luc khoe tre snippets", "luc choi tre snippets", "luc khoa tre 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 khoi tre 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 khoi tre snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( luc khoi tre snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("luc khoi tre snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.