Perhaps you should try some spelling variations:
hanh trung » thanh trung, hanh trang, manh trung
thuat sach » thuat lanh, thuat san
trung phan » trung thanh, trung ha, dung phan
phan luong » phan xuong, phan thuong, phan truong
luong cong » dung cong, trong cong, cong cong
thuat tac » thuat tach, thuat tao, thuat tai
cong toan » cong tan, cong hoan, cong tuan
toan pha » toan phan, toan phai, toan nha
pha tap » pham tai

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((thuat tac) or (thuat sach)) - hanh trung phan luong cong toan pha tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thuat tac) OR (thuat sach)) - hanh trung phan luong cong toan pha tap.
• Adding a wildcard symbol may retrieve word variants: hoc ((thuat tac) or (thuat sach)) - hanh trung phan luong cong toan pha tap*.