Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"hau dan cac snippets" » "hau dan code snippets", "khau dan cac snippets", "hau can cac snippets", "hat dan cac snippets", "hau dan cach snippets", "hau dang cac snippets", "hau dan ca 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: (((("hau dan cac snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hau dan cac snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( hau dan cac snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hau dan cac snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.