Perhaps you should try some spelling variations:
"using java code snippets" » "using data code snippets", "using java core snippets"
"toc ca cau snippets" » "toc cao cau snippets", "toc ta cau snippets", "toc co cau snippets", "toc cac cau snippets", "toc can cau snippets", "toc cua cau snippets"
"locating bug code snippets" » "locating bug core snippets", "locating bung code snippets", "locating bugs code snippets"

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

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