Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"trinh di cua snippets" » "trinh di code snippets", "trinh do cua snippets", "trinh dien cua snippets", "trinh dinh cua snippets", "trinh dai cua snippets", "trinh doi cua snippets", "trinh de 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: (((("trinh di 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: (((("trinh di cua snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( trinh di cua snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("trinh di cua snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.