Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cong tac cam snippets" » "cong ty cam snippets", "cong tac can snippets", "cong cac cam snippets", "cong tac cay 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: (((("cong tac cam snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cong tac cam snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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• Adding a wildcard symbol may retrieve word variants: (((("cong tac cam snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.