Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"cao nhan cua snippets" » "cao nhan code snippets", "ca nhan cua snippets", "cam nhan cua snippets", "tao nhan cua snippets", "cao nhat cua snippets", "cao nhan luc snippets", "cao nhan su 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: (((("cao nhan cua snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cao nhan cua snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( cao nhan cua snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cao nhan cua snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.