Perhaps you should try some spelling variations:
"coating dung co snippets" » "hoang dung co snippets", "coating dung cho snippets", "coating dung cong snippets", "coating dung cua snippets"
"cong dung con snippets" » "cuong dung con snippets", "cong dong con snippets", "cong luong con snippets", "cong dung cong snippets", "cong dung von snippets", "cong dung dong snippets", "cong dung chon snippets", "cong dung congn snippets", "cong dung cuan 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: (((("coating dung co snippets") or ("cong dung con snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("coating dung co snippets") OR ("cong dung con snippets"))) OR ("locating bug code snippets")).
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