Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"xac tinh doi snippets" » "xac dinh doi snippets", "dac tinh doi snippets", "cac tinh doi snippets", "xac trinh doc snippets", "xac trinh do snippets", "xac tinh hoc 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: (((("xac tinh 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: (((("xac tinh doi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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• Adding a wildcard symbol may retrieve word variants: (((("xac tinh doi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.