Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"phi nam sach snippets" » "phi ngan sach snippets", "phi nam danh snippets", "phi nam sao snippets", "pho nam sach snippets", "chi nam sach snippets", "phien nam sach snippets"

Try widening your search to All Fields.

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