Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"tri cac sio2 snippets" » "tri cao sio2 snippets", "tri bao sio2 snippets", "tri sic sio2 snippets", "tri mac sio2 snippets", "tai cac sio2 snippets", "tri dac sio2 snippets"

Try widening your search to All Fields.

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• Performing a fuzzy search may retrieve terms with similar spellings: (((("tri cac sio2 snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tri cac sio2 snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
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