Perhaps you should try some spelling variations:
"long hieu data snippets" » "dong hieu data snippets", "cong hieu data snippets", "long tieu data snippets", "long lieu data snippets", "long bieu dat snippets", "long hieu bat snippets", "long hieu data slippers"
"hang java java snippets" » "hang va java snippets", "hang java java slippers"
"locating bug code snippets" » "locating bug code slippers", "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: (((("long hieu data snippets") or ("hang java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("long hieu data snippets") OR ("hang java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( long hieu data snippets ) or ( hang java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("long hieu data snippets") or ("hang java java snippets"))) or ("locating bug code snippets"))*.