Perhaps you should try some spelling variations:
"using java code snippets" » "using data code snippets", "using java core snippets"
"lang san cua snippets" » "lang son cua snippets", "lang van cua snippets", "lan san cua snippets", "lang sang cua snippets", "lang ban cua snippets", "lang dan 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 ("lang san 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 ("lang san cua snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( using java code snippets ) or ( lang san cua snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("using java code snippets") or ("lang san cua snippets"))) or ("locating bug code snippets"))*.