Perhaps you should try some spelling variations:
"cuoc canh cua snippets" » "cuoc cach cua snippets", "luoc canh cua snippets", "cuoc chinh cua snippets", "cuoc manh cua snippets", "cuoc hanh cua snippets", "cuoc anh cua snippets"
"dung java java snippets" » "dung va java 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: (((("cuoc canh cua snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cuoc canh cua snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cuoc canh cua snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cuoc canh cua snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.