Perhaps you should try some spelling variations:
"data using java snippets" » "data using data snippets"
"thong cay co snippets" » "thong xay co snippets", "thong cac co snippets", "thong cap co snippets", "thong tay co snippets", "thong cay cong snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core 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: (((("thong cay co snippets") or ("data using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("thong cay co snippets") OR ("data using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thong cay co snippets ) or ( data using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thong cay co snippets") or ("data using java snippets"))) or ("locating bug code snippets"))*.