Perhaps you should try some spelling variations:
thieu sach » chieu sach, thien hach, hieu cach
dung thang » hung thang, cung thang, dung thuong
hoc thieu » toc thieu, hoc hien
manh tung » manh hung, thanh tung
tung phan » trung phan, tuong phan, dung phan
phan cong » thanh cong
dung dat » dung va, dung tai
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: hoc thieu sach - manh tung phan cong ((dung thang) OR (dung dat)) phan lap~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu sach - manh tung phan cong ((dung thang) OR (dung dat)) phan lap".
• Adding a wildcard symbol may retrieve word variants: hoc thieu sach - manh tung phan cong ((dung thang) OR (dung dat)) phan lap*.