Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"duc hat doi snippets" » "duc hat code snippets", "duc phat doi snippets", "duc hau doi snippets", "duc ha doi snippets", "duc hoat doi snippets", "duc thay doi snippets", "duc hang doi 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: (((("python using java snippets") or ("duc hat doi snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python using java snippets") OR ("duc hat doi snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( python using java snippets ) or ( duc hat doi snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") or ("duc hat doi snippets"))) or ("locating bug core snippets"))*.