Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets", "locating bugs code slippers"
"tiep cau code snippets" » "tiep can code snippets", "thien cau code snippets", "diem cau code snippets", "tiep cau cong snippets", "tiep cau de snippets", "tiep cfd code snippets", "tiep cau code slippers"
"dung cho code snippets" » "dung cho cong snippets", "dung cfd code snippets", "dung cho con snippets", "dung cho code slippers"

Try widening your search to All Fields.

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