Perhaps you should try some spelling variations:
toan thiet » hoan thien, luan thiet, toan tien
hoc thiet » hoc thieu, hoc thuyet, hoc hien
tao thiet » tai thiet, tay thiet, va thiet
hanh tran » hanh trang, thanh tran, hanh tram
dung cong » dung trong
tran van » luan van
van dung » van dong, xay dung, tin dung
cong tan » cong tac, cong san, cong thanh
tan toan » tan tran, tap toan, van toan
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 thiet) or (((tao thiet) OR (toan thiet)))) tach - hanh tran van dung cong tan toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc thiet) OR (((tao thiet) OR (toan thiet)))) tach - hanh tran van dung cong tan toan ban*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((hoc thiet) or (((tao thiet) OR (toan thiet)))) tach - hanh tran van dung cong tan toan ban*".