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