Perhaps you should try some spelling variations:
hoc thieu » toc thieu, hoc hien
hang cong » dang cong, hang nong, bang cong
ho thiet » hoc thiet, hoa thiet, so thiet
trang va » hang va
tran van » luan van
cong tan » cong tac, cong san, cong thanh
tan toan » tan tran, tap toan, van toan
toan cao » toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((hoc thieu) OR (ho thiet)) tach - hanh ((trang va) OR (tran van)) hang cong tan toan cao~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((hoc thieu) OR (ho thiet)) tach - hanh ((trang va) OR (tran van)) hang cong tan toan cao".
• Adding a wildcard symbol may retrieve word variants: ((hoc thieu) OR (ho thiet)) tach - hanh ((trang va) OR (tran van)) hang cong tan toan cao*.