Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"manh hoc chi snippets" » "anh hoc chi snippets", "manh ho chi snippets", "manh hon chi snippets", "manh hoc chia snippets", "manh hoc cho snippets", "manh hoc chu 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: (((("manh hoc chi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("manh hoc chi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( manh hoc chi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("manh hoc chi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.