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