Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"mot dong cho snippets" » "mot cong cho snippets", "mo dong cho snippets", "hoat dong cho snippets", "mot dung cho snippets", "mot dong co snippets", "mot dong 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: (((("mot dong cho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("mot dong cho snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( mot dong cho snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("mot dong cho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.