Perhaps you should try some spelling variations:
"trinh chat doc snippets" » "tinh chat doc snippets", "trinh luat doc snippets", "trinh han doc snippets", "trinh chat hoc snippets", "trinh chau doc snippets", "trinh thuat doc snippets"
"dong bug code snippets" » "dong bang code snippets", "dong hung code snippets", "dong cung code snippets", "dong bug core snippets"
"locating bug code snippets" » "locating bug core snippets"

You may be able to get more results by adjusting your search query.

• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"trinh chat doc snippets\") OR (\"dong bug code snippets\"))) OR (\"locating bug code snippets\"))~".
• Removing quotes may allow a broader search: (((( trinh chat doc snippets ) OR ( dong bug code snippets ))) OR ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("trinh chat doc snippets") OR ("dong bug code snippets"))) OR ("locating bug code snippets"))*.