Perhaps you should try some spelling variations:
thieu hanh » thien thanh, thien chanh, thieu khang
thanh tung » thanh cong
hoc thieu » toc thieu, hoc hien
tuan dung » tuan duong, tran dung, tan dung
dung cong » dung trong
tran chau » tranh chap, tran huu
cong tan » cong tac, cong san, cong thanh

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 hanh - ((thanh trung) OR (thanh tung)) tuan dung cong tan tran chau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu hanh - ((thanh trung) OR (thanh tung)) tuan dung cong tan tran chau".
• Adding a wildcard symbol may retrieve word variants: hoc thieu hanh - ((thanh trung) OR (thanh tung)) tuan dung cong tan tran chau*.