Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"cong hai chu snippets" » "cong hai code snippets", "cong thai chu snippets", "cong ha chu snippets", "hoang hai chu snippets", "cong hai chau snippets", "cong hoi chu snippets", "cong hai chi snippets"
"python using java snippets" » "python using data 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 hai chu snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cong hai chu snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
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• Adding a wildcard symbol may retrieve word variants: (((("cong hai chu snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.