Perhaps you should try some spelling variations:
"using java code snippets" » "using data code snippets", "using java core snippets"
"thi thoa trinh slippers" » "thi tho trinh slippers", "thi thuat trinh slippers", "thi hoa tinh slippers", "thi hoa trinh slippers", "thi thu trinh slippers", "thi thuy trinh slippers", "thi thoa trinh slippery", "thi thoa trinh grippers"
"locating bug code snippets" » "locating bug core 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 java code snippets") or ("thi thoa trinh slippers"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("using java code snippets") OR ("thi thoa trinh slippers"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( using java code snippets ) or ( thi thoa trinh slippers ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("using java code snippets") or ("thi thoa trinh slippers"))) or ("locating bug code snippets"))*.