Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"lanh ly hoc snippets" » "lanh lay hoc snippets", "doanh ly hoc snippets", "khanh ly hoc snippets", "lanh y hoc snippets", "lanh li 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: (((("lanh ly 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: (((("lanh ly hoc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( lanh ly hoc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("lanh ly hoc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.