Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"thap duc tan snippets" » "thap du tan snippets", "than duc tan snippets", "thach duc tan snippets", "thap duc tran snippets", "thap duc toan snippets", "thap duc than 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: (((("thap duc tan snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("thap duc tan snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
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• Adding a wildcard symbol may retrieve word variants: (((("thap duc tan snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.