Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"dong cac moi snippets" » "dong cac code snippets", "duong cac moi snippets", "dong bac moi snippets", "dung cac moi snippets", "dong cac mon snippets", "dong cac toi snippets", "dong cac thoi 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: (((("dong cac moi snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dong cac moi snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( dong cac moi snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dong cac moi snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.