Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"dan dung coi snippets" » "dan dung code snippets", "van dung coi snippets", "tin dung coi snippets", "ap dung coi snippets", "dan dung co snippets", "dan dung doi snippets", "dan dung con 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: (((("dan dung coi snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dan dung coi snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( dan dung coi snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dan dung coi snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.