Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"cao xu cua snippets" » "cao xu code snippets", "chao xu cua snippets", "cao su cua snippets", "cap xu cua snippets", "cao hu cua snippets", "cao tu cua snippets", "cao vu cua 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 xu 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 xu cua snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( cao xu cua snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cao xu cua snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.