Perhaps you should try some spelling variations:
phuong hanh » phuong thanh, phuong anh, phuong danh
thanh rung » thanh trung, thanh tung, thanh hung
hanh toan » thanh toan, khanh toan, manh toan
hoc hieu » hoc thieu, hoc hien, doc hieu
hieu luc » hieu luat, hieu qua
rung cay » dung cay, trung cap, trong cay
cay doan » cay dan, cay xoan, chan doan
toan ban » van ban

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 luc - thanh rung cay doan phuong hanh toan ban~.
• Adding a wildcard symbol may retrieve word variants: hoc hieu luc - thanh rung cay doan phuong hanh toan ban*.