Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"dang tu doi snippets" » "dang tu code snippets", "dang thu doi snippets", "dang su doi snippets", "dong tu doi snippets", "dang tu do snippets", "dang te doi snippets", "dang tu di snippets"
"python using java snippets" » "python using data 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: (((("dang tu doi snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dang tu doi snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( dang tu doi snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dang tu doi snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.