Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"co duoc hieu snippets" » "co doc hieu snippets", "co duoc lieu snippets", "co duc hieu snippets", "tao duoc hieu snippets", "hoa duoc hieu snippets", "hoc duoc hieu 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: (((("co duoc hieu snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("co duoc hieu snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( co duoc hieu snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("co duoc hieu snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.