Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"sach che cua snippets" » "sach che code snippets", "sach thue cua snippets", "sach nha cua snippets", "sach cap cua snippets", "sach cheo cua snippets", "sach chi 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 che 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 che cua snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( sach che cua snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("sach che cua snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.