Perhaps you should try some spelling variations:
trinh luong » trinh duong, trinh huong, trinh xuong
canh trinh » canh tranh, hanh trinh, canh tinh
luong cong » dung cong, trong cong, cong cong
khi xanh » khia canh, thi hanh, thi anh
dong tap » dong thap, dong tai, tong tap
tap toan » tap doan, tap quan, bai toan
toan cau » toan cao, toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi khi xanh - canh trinh luong cong dong tap toan cau~.
• Adding a wildcard symbol may retrieve word variants: doi khi xanh - canh trinh luong cong dong tap toan cau*.