Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"bach dan cua snippets" » "bach dan code snippets", "bach dang cua snippets", "bac dan cua snippets", "bach van cua snippets", "bach dan ca snippets", "bach ban cua snippets", "bach 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: (((("bach dan 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: (((("bach dan cua snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( bach dan cua snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("bach dan cua snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.