Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"luc tiem hoc snippets" » "luc tieng hoc snippets", "luc thien hoc snippets", "luc thiet hoc snippets", "luc tieu hoc snippets", "luc triet hoc snippets", "luc tin hoc 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 tiem hoc 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 tiem hoc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( luc tiem hoc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("luc tiem hoc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.