Perhaps you should try some spelling variations:
"using java code snippets" » "using data code snippets", "using java core snippets"
"con cach cua snippets" » "co cach cua snippets", "con cac cua snippets", "cuoc cach cua snippets", "con cach dua snippets", "con canh cua 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 ("con cach cua snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("using java code snippets") OR ("con cach cua snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( using java code snippets ) or ( con cach cua snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("using java code snippets") or ("con cach cua snippets"))) or ("locating bug code snippets"))*.