Perhaps you should try some spelling variations:
thieu tach » thien hach, chiet tach, chieu sach
tung tuan » trung tuan, quang tuan, trang tuan
hung tuan » hung tran, quang tuan, trung tuan
dung cong » dung trong
thanh lap » thanh san, thanh hai, thanh van
cong ban » cong bang, cong san, cong tan
phan lap » phan dau

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

• Performing a fuzzy search may retrieve terms with similar spellings: toc thieu tach - thanh ((tung tuan) or (hung tuan)) dung cong ban ((thanh lap) OR (phan lap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc thieu tach - thanh ((tung tuan) OR (hung tuan)) dung cong ban ((thanh lap) OR (phan lap)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc thieu tach - thanh ((tung tuan) or (hung tuan)) dung cong ban ((thanh lap) OR (phan lap))".
• Adding a wildcard symbol may retrieve word variants: toc thieu tach - thanh ((tung tuan) or (hung tuan)) dung cong ban ((thanh lap) OR (phan lap))*.