Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
hieu manh » hieu nganh, dieu hanh, hien hanh
nhu phung » nhu phuong, thu phuong, chu phuong
chinh ta » chinh tai, chinh va, chinh tri
hinh cua » chinh cua, sinh cua, tinh cua
van toan » van tuan, van tan, van thanh
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 ((hieu manh) or (chieu xanh)) - hanh ((chinh ta) or (hinh cua)) nhu phung van toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hieu manh) OR (chieu xanh)) - hanh ((chinh ta) OR (hinh cua)) nhu phung van toan cao.
• Adding a wildcard symbol may retrieve word variants: hoc ((hieu manh) or (chieu xanh)) - hanh ((chinh ta) or (hinh cua)) nhu phung van toan cao*.