Perhaps you should try some spelling variations:
"creating ao cua snippets" » "creating _ cua snippets", "creating _o cua snippets", "reading ao cua snippets", "creating bao cua snippets", "creating dao cua snippets", "creating co cua snippets"
"creating a van snippets" » "creating _ van snippets", "reading a van snippets", "creating va van snippets", "creating ha van snippets", "creating ma van snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

Try widening your search to All Fields.

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• Performing a fuzzy search may retrieve terms with similar spellings: (((("creating ao cua snippets") or ("creating a van snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("creating ao cua snippets") OR ("creating a van snippets"))) OR ("locating bug code snippets")).
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• Adding a wildcard symbol may retrieve word variants: (((("creating ao cua snippets") or ("creating a van snippets"))) or ("locating bug code snippets"))*.