Perhaps you should try some spelling variations:
truong ham » truong dai, truong cao, truong dao
hien xanh » hien hanh, hien nhanh, chieu xanh
trong lam » trong cac, trong ca, trong san
dong cong » duong cong, dung cong, dang cong
cong tan » cong tac, cong san, cong thanh
tan toan » tan tran, tap toan, van toan
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: hoc hien xanh - anh ((trong lam) or (truong ham)) dong cong tan toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien xanh - anh ((trong lam) OR (truong ham)) dong cong tan toan cao.
• Adding a wildcard symbol may retrieve word variants: hoc hien xanh - anh ((trong lam) or (truong ham)) dong cong tan toan cao*.