Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"mong vu cong snippets" » "long vu cong snippets", "cong vu cong snippets", "mong du cong snippets", "mong va cong snippets", "mong tu cong snippets", "mong cua cong 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: (((("mong vu cong snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("mong vu cong snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( mong vu cong snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("mong vu cong snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.