Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"ban dau sio2 snippets" » "ban dau sieu snippets", "ban bao sio2 snippets", "ban cao sio2 snippets", "bat dau sio2 snippets", "ban dan sio2 snippets", "van dau sio2 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: (((("ban dau sio2 snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("ban dau sio2 snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( ban dau sio2 snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("ban dau sio2 snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.