Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dat quoc hoc snippets" » "dat nuoc hoc snippets", "dat duoc hoc snippets", "dan quoc hoc snippets", "dat quoc hoi snippets", "dat buoc 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 quoc 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 quoc hoc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dat quoc hoc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dat quoc hoc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.