Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"mong duc ton snippets" » "hong duc ton snippets", "cong duc ton snippets", "mong du ton snippets", "mong duc tan 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 duc ton 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 duc ton snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( mong duc ton snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("mong duc ton snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.