Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"long hieu mo snippets" » "long hieu code snippets", "dong hieu mo snippets", "cong hieu mo snippets", "long tieu mo snippets", "long hieu moi snippets", "long hieu mot snippets", "long hieu so 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: (((("long hieu mo snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("long hieu mo snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( long hieu mo snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("long hieu mo snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.