Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"hieu tin cac snippets" » "hieu tin code snippets", "lieu tin cac snippets", "hieu tieng cac snippets", "chieu tinh cac snippets", "hieu ton cac snippets", "hieu tinh cach snippets", "hieu trinh cac 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: (((("hieu tin 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: (((("hieu tin cac snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( hieu tin cac snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hieu tin cac snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.