Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thoa cho hoc snippets" » "hoa cho hoc snippets", "hoa co hoc snippets", "hoc cho hoc snippets", "thoa co hoc snippets", "thoa khoa 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: (((("thoa cho 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: (((("thoa cho hoc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thoa cho hoc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thoa cho hoc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.