Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"lieu lam hoc snippets" » "lieu lai hoc snippets", "lieu tham hoc snippets", "lieu va hoc snippets", "lieu am hoc snippets", "lieu lam hoa snippets", "lieu tam 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: (((("lieu lam 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: (((("lieu lam hoc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( lieu lam hoc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("lieu lam hoc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.