Perhaps you should try some spelling variations:
thien hach » thien thanh, hien hanh
toc thien » toc thieu, ton thien, duoc thien
hanh tang » hanh trang, anh tang, hanh mang
cua trung » cua truong, xuan trung, ba trung
cua nhung » va nhung
cong tac » cong ty
tac toan » tap toan, tam toan, hach toan
toan tap » toan ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: toc thien hach - hanh tang ((cua trung) OR (cua nhung)) cong tac toan tap~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc thien hach - hanh tang ((cua trung) OR (cua nhung)) cong tac toan tap".
• Adding a wildcard symbol may retrieve word variants: toc thien hach - hanh tang ((cua trung) OR (cua nhung)) cong tac toan tap*.