Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"duc ma cua snippets" » "duc ma code snippets", "duoc ma cua snippets", "duc mau cua snippets", "duc man cua snippets", "duc ca cua snippets", "duc manh cua snippets", "duc 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: (((("python using java snippets") or ("duc ma cua snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python using java snippets") OR ("duc ma cua snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( python using java snippets ) or ( duc ma cua snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") or ("duc ma cua snippets"))) or ("locating bug core snippets"))*.