Perhaps you should try some spelling variations:
"using java code snippets" » "using data code snippets", "using java core snippets"
"trinh phan lu slippers" » "trinh han lu slippers", "trinh quan lu slippers", "thanh phan lu slippers", "trinh phan tu slippers", "trinh phan le slippers", "trinh phan ly slippers", "trinh phan lu slippery", "trinh phan lu grippers"
"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 ("trinh phan lu slippers"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("using java code snippets") OR ("trinh phan lu slippers"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( using java code snippets ) or ( trinh phan lu slippers ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("using java code snippets") or ("trinh phan lu slippers"))) or ("locating bug code snippets"))*.