Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"cau trau cua snippets" » "cau trau code snippets", "cau tra cua snippets", "cau trieu cua snippets", "cau truc cua snippets", "cau tru cua snippets", "cau tranh cua snippets", "cau tu 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: (((("cau trau 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: (((("cau trau cua snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( cau trau cua snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cau trau cua snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.