Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets", "locating bugs code slippers"
"dung phap thuc snippets" » "dung phan thuc snippets", "dung phat thuc snippets", "dung nhan thuc snippets", "dung phap thu snippets", "dung phap hoc snippets", "dung phap tu snippets", "dung phap thuc slippers"
"dung java java snippets" » "dung va java snippets", "dung java java slippers"

Try widening your search to All Fields.

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• Performing a fuzzy search may retrieve terms with similar spellings: (((("dung phap thuc snippets") or ("dung java java snippets"))) or ("locating bugs code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung phap thuc snippets") OR ("dung java java snippets"))) OR ("locating bugs code snippets")).
• Removing quotes may allow a broader search: (((( dung phap thuc snippets ) or ( dung java java snippets ))) or ( locating bugs code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung phap thuc snippets") or ("dung java java snippets"))) or ("locating bugs code snippets"))*.