Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"ninh duc cho snippets" » "ninh duc code snippets", "minh duc cho snippets", "dinh duc cho snippets", "tinh duc cho snippets", "ninh duc tho snippets", "ninh dac cho snippets", "ninh duc pho 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: (((("ninh duc cho snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("ninh duc cho snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( ninh duc cho snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("ninh duc cho snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.