Perhaps you should try some spelling variations:
thieu tach » thien hach, chiet tach, chieu sach
luan chung » luan chinh
hoc thieu » toc thieu, hoc hien
hanh tang » hanh trang, anh tang, hanh mang
luan hung » lan hung, luan ung, tuan hung
cong tac » cong ty
tac phan » tac pham, tai phan, tac phat
phan cau » phan dau, phan cac, phan tu

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 tach - hanh tang ((luan hung) OR (luan chung)) cong tac phan cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu tach - hanh tang ((luan hung) OR (luan chung)) cong tac phan cau".
• Adding a wildcard symbol may retrieve word variants: hoc thieu tach - hanh tang ((luan hung) OR (luan chung)) cong tac phan cau*.