Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phan tao doi snippets" » "nhan tao doi snippets", "phan tap doi snippets", "phan tan doi snippets", "phan trao doi snippets", "phan tao dai snippets", "phan tao boi 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: (((("phan tao doi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("phan tao doi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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• Adding a wildcard symbol may retrieve word variants: (((("phan tao doi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.