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