Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"lanh hoc dat snippets" » "anh hoc dat snippets", "danh hoc dat snippets", "thanh hoc dat snippets", "lanh hoc dan snippets", "lanh hoc dai snippets", "lanh hoc phat 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: (((("lanh hoc dat snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("lanh hoc dat snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( lanh hoc dat snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("lanh hoc dat snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.