Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets"
"data using java snippets" » "data using data snippets"
"cong phan cau snippets" » "cong nhan cau snippets", "cong khan cau snippets", "chong phap cau snippets", "cong phan dau snippets", "cong phan cac snippets", "cong phan tu 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: (((("data using java snippets") or ("cong phan cau snippets"))) or ("locating bugs code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("data using java snippets") OR ("cong phan cau snippets"))) OR ("locating bugs code snippets")).
• Removing quotes may allow a broader search: (((( data using java snippets ) or ( cong phan cau snippets ))) or ( locating bugs code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("data using java snippets") or ("cong phan cau snippets"))) or ("locating bugs code snippets"))*.