Perhaps you should try some spelling variations:
"using java code snippets" » "using data code snippets", "using java core snippets"
"vang cua cha snippets" » "mang cua cha snippets", "hang cua cha snippets", "tang cua cha snippets", "vang cua chu snippets", "vang cua nha snippets", "vang chua chay 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 ("vang cua cha snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("using java code snippets") OR ("vang cua cha snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( using java code snippets ) or ( vang cua cha snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("using java code snippets") or ("vang cua cha snippets"))) or ("locating bug code snippets"))*.