Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"hao doan cap snippets" » "hao doan code snippets", "hao dan cap snippets", "chan doan cap snippets", "thai doan cap snippets", "hao doanh cao snippets", "hao dan ca snippets", "hao toan cao 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: (((("hao doan cap snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hao doan cap snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( hao doan cap snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hao doan cap snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.