Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"luan tac ho snippets" » "luan tach ho snippets", "luan dac ho snippets", "luan thuc ho snippets", "luan tac cho snippets", "luan trac ho snippets", "luan bac ho 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: (((("luan tac ho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("luan tac ho snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( luan tac ho snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("luan tac ho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.