Perhaps you should try some spelling variations:
"trinh qua cac snippets" » "trinh quan cac snippets", "trinh cua cac snippets", "trinh quang cac 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 qua cac snippets\") OR (\"dong bug code snippets\"))) OR (\"locating bug code snippets\"))~".
• Removing quotes may allow a broader search: (((( trinh qua cac snippets ) OR ( dong bug code snippets ))) OR ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("trinh qua cac snippets") OR ("dong bug code snippets"))) OR ("locating bug code snippets"))*.