Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"co van cuc snippets" » "co van code snippets", "co van duc snippets", "co van luc snippets", "co van cu snippets", "cao van cuc snippets", "vo van cuc snippets", "so van cuc 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: (((("co van cuc snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("co van cuc snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( co van cuc snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("co van cuc snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.