Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dat tinh hoc snippets" » "dac tinh hoc snippets", "dao tinh hoc snippets", "sat tinh hoc snippets", "dat sinh hoc snippets", "dat tin hoc snippets", "dat hinh 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: (((("dat tinh 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: (((("dat tinh hoc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dat tinh hoc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dat tinh hoc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.