Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"sach cuu cua snippets" » "sach cuu code snippets", "sach cua cua snippets", "sach luu cua snippets", "sach uu cua snippets", "sach cau cua snippets", "sach cu cua snippets", "sach chu 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: (((("sach cuu 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: (((("sach cuu cua snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( sach cuu cua snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("sach cuu cua snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.