Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"tran hai cua snippets" » "tran hai code snippets", "tran bai cua snippets", "tran chau cua snippets", "tran nhat cua snippets", "tran thai cua snippets", "tran hoi cua snippets", "tran dai 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: (((("tran hai 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: (((("tran hai cua snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( tran hai cua snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tran hai cua snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.