Perhaps you should try some spelling variations:
"reading hoi cua snippets" » "reading from cua snippets", "reading hoi chuc snippets"
"creating a lua snippets" » "creating _ lua snippets", "reading a lua snippets", "creating ca lua 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: (((("reading hoi cua snippets") or ("creating a lua snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("reading hoi cua snippets") OR ("creating a lua snippets"))) OR ("locating bug code snippets")).
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