Perhaps you should try some spelling variations:
"using data code snippets" » "using java code snippets", "using sat code snippets", "missing data code snippets", "using rate code snippets"
"tran trinh cau snippets" » "trang trinh cau snippets", "tra trinh cau snippets", "thanh trinh cau snippets", "tran trinh chat snippets", "tran trinh chao snippets", "tran trinh tu snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets"

Try widening your search to All Fields.

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