Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"quoc cach da snippets" » "quoc cach code snippets", "cuoc cach da snippets", "quoc cac da snippets", "quoc sach da snippets", "quoc cach dua snippets", "quoc cach de snippets", "quoc cach ta 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: (((("quoc cach da snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("quoc cach da snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( quoc cach da snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("quoc cach da snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.