Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"hung van luc snippets" » "phung van luc snippets", "nhung van luc snippets", "dung van luc snippets", "hung van loc snippets", "hung van duc snippets", "hung van lu snippets"

Try widening your search to All Fields.

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• Performing a fuzzy search may retrieve terms with similar spellings: (((("python using java snippets") or ("hung van luc snippets"))) or ("locating bug core snippets"))~.
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