Perhaps you should try some spelling variations:
"using java code snippets" » "using data code snippets", "using java core snippets"
"thi du cac snippets" » "thi dua cac snippets", "thi dau cac snippets", "thi diu cac snippets", "thi duc cac snippets", "thi tu cac snippets", "thi do cac 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 ("thi du cac snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("using java code snippets") OR ("thi du cac snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( using java code snippets ) or ( thi du cac snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("using java code snippets") or ("thi du cac snippets"))) or ("locating bug code snippets"))*.