Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"what dan hoc snippets" » "hat dan hoc snippets", "what can hoc snippets", "nhat danh hoc snippets", "what van hoc snippets", "what dan toc snippets", "what dai 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: (((("what dan 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: (((("what dan hoc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( what dan hoc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("what dan hoc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.