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