Perhaps you should try some spelling variations:
phuong hang » phuong hoang, phuong bang, phuong hanh
cua phuong » cuu phuong, cuc phuong, luan phuong
hien tinh » khien tinh, thien tinh, bien tinh
hanh dung » thanh dung, anh dung, hanh dong
dung cua » dung luan, dung cho
toan tap » toan ban
va toan » van toan, bai toan, tap toan

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 tinh - hanh dung cua phuong hang va toan tap~.
• Adding a wildcard symbol may retrieve word variants: hoc hien tinh - hanh dung cua phuong hang va toan tap*.