Perhaps you should try some spelling variations:
"using java code snippets" » "using data code snippets", "using java core snippets"
"phan hai cua snippets" » "phan ha cua snippets", "chan hai cua snippets", "phan dai cua snippets", "phan thai cua snippets", "phan hoi 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 ("phan hai 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 ("phan hai cua snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( using java code snippets ) or ( phan hai cua snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("using java code snippets") or ("phan hai cua snippets"))) or ("locating bug code snippets"))*.