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