Perhaps you should try some spelling variations:
"data nuoc cham snippets" » "dat nuoc cham snippets", "dat duoc cham snippets", "dau nuoc cham snippets", "data nuoc chau snippets", "data nuoc chay snippets", "data nguoi cham 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: (((("data nuoc cham snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("data nuoc cham snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( data nuoc cham snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("data nuoc cham snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.