Perhaps you should try some spelling variations:
"using java code snippets" » "using data code snippets", "using java core snippets"
"lan dan ke snippets" » "ban dan ke snippets", "van dan ke snippets", "lan dau ke snippets", "lan dan ky snippets", "lan dan ve snippets", "lan ban ke 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 ("lan dan ke snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("using java code snippets") OR ("lan dan ke snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( using java code snippets ) or ( lan dan ke snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("using java code snippets") or ("lan dan ke snippets"))) or ("locating bug code snippets"))*.