Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"khoi ma cua snippets" » "khoi ma code snippets", "khoa ma cua snippets", "khoe ma cua snippets", "khoi va cua snippets", "khoi ca cua snippets", "khoi manh cua snippets", "khoi mang 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: (((("khoi ma 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: (((("khoi ma cua snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( khoi ma cua snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("khoi ma cua snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.