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