Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets", "locating bugs code slippers"
"data using data snippets" » "data using java snippets", "data using sat snippets", "data missing data snippets", "data using data slippers"
"dung dat viet snippets" » "dung va viet snippets", "dung tai viet snippets", "dung dao viet snippets", "dung da viet snippets", "dung dai viet snippets", "dung dat viet slippers"

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 data snippets") or ("dung dat viet snippets"))) or ("locating bugs code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("data using data snippets") OR ("dung dat viet snippets"))) OR ("locating bugs code snippets")).
• Removing quotes may allow a broader search: (((( data using data snippets ) or ( dung dat viet snippets ))) or ( locating bugs code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("data using data snippets") or ("dung dat viet snippets"))) or ("locating bugs code snippets"))*.