Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets", "locating bugs code slippers"
"mang viet data snippets" » "nang viet data snippets", "anh viet data snippets", "mai viet data snippets", "mang viet dat snippets", "mang viet ta snippets", "mang lieu data snippets", "mang viet data slippers"
"hang java java snippets" » "hang va java snippets", "hang java java 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: (((("mang viet data snippets") or ("hang java java snippets"))) or ("locating bugs code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("mang viet data snippets") OR ("hang java java snippets"))) OR ("locating bugs code snippets")).
• Removing quotes may allow a broader search: (((( mang viet data snippets ) or ( hang java java snippets ))) or ( locating bugs code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("mang viet data snippets") or ("hang java java snippets"))) or ("locating bugs code snippets"))*.