Perhaps you should try some spelling variations:
ngang thanh » nang thanh, nganh thanh, ngan thanh
truong cong » trong cong, truong dong, truong long
cong ngang » cong nhan, cong quang, cong lang
thanh chau » thanh cha, thanh cham, thanh chu
tranh cac » thanh cac, tranh cai, tranh chap
trinh cac » trinh cau, trinh chat, trinh chao
hien anh » hien hanh, thien anh, dien anh

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc hien anh - canh ((tranh cac) or (trinh cac)) truong cong ngang thanh chau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien anh - canh ((tranh cac) OR (trinh cac)) truong cong ngang thanh chau.
• Adding a wildcard symbol may retrieve word variants: hoc hien anh - canh ((tranh cac) or (trinh cac)) truong cong ngang thanh chau*.