Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"bach phan co snippets" » "mach phan co snippets", "bach khang co snippets", "cach pha co snippets", "bach phan bo snippets", "bach phan cong snippets", "bach phan cac 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: (((("bach phan co snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("bach phan co snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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• Adding a wildcard symbol may retrieve word variants: (((("bach phan co snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.