Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"van viet cho snippets" » "van viet code snippets", "san viet cho snippets", "gian viet cho snippets", "tran viet cho snippets", "van viec cho snippets", "van viet co snippets", "van viet theo 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 ("van viet cho snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python using java snippets") OR ("van viet cho snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( python using java snippets ) or ( van viet cho snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") or ("van viet cho snippets"))) or ("locating bug core snippets"))*.