Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"trong tin le snippets" » "thong tin le snippets", "trong tan le snippets", "trong tieng le snippets", "trong tin la snippets", "trong tien len 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: (((("trong tin le snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("trong tin le snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( trong tin le snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("trong tin le snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.