Perhaps you should try some spelling variations:
"using java code snippets" » "using data code snippets", "using java core snippets"
"anh nhung le snippets" » "canh nhung le snippets", "hanh nhung le snippets", "anh hung le snippets", "anh nhung ke snippets", "anh nhung se snippets", "anh nhung loi 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 ("anh nhung le snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("using java code snippets") OR ("anh nhung le snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( using java code snippets ) or ( anh nhung le snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("using java code snippets") or ("anh nhung le snippets"))) or ("locating bug code snippets"))*.