Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"manh toan 02 snippets" » "thanh toan 02 snippets", "anh tuan 02 snippets", "tinh toan 02 snippets", "manh toan 02 slippers"
"locating bug code snippets" » "locating bug code slippers", "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 toan 02 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 toan 02 snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( manh toan 02 snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("manh toan 02 snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.