Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using raw snippets" » "python using real snippets", "python using a snippets", "python using low snippets"
"cac dao tinh snippets" » "cac dac tinh snippets", "cac dao minh snippets", "cac dao dinh snippets", "cac dan tinh snippets", "ca dao tinh snippets", "cac dai tinh 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: (((("cac dao tinh snippets") or ("python using raw snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cac dao tinh snippets") OR ("python using raw snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( cac dao tinh snippets ) or ( python using raw snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cac dao tinh snippets") or ("python using raw snippets"))) or ("locating bug core snippets"))*.