Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"hao dan cach snippets" » "hao dan code snippets", "hao dan cac snippets", "hao dan canh snippets", "hao nhan cach snippets", "dao dan cach snippets", "hao van cach snippets", "hat dan cach 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 dan cach 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 dan cach snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( hao dan cach snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hao dan cach snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.