Perhaps you should try some spelling variations:
thieu sach » chieu sach, thien hach, hieu cach
hanh trung » thanh trung, hanh trang, manh trung
trung tuan » trung thanh, trung tam, tran tuan
nhung cong » dung cong, thong cong, nhung don
hoc thieu » toc thieu, hoc hien
hang cong » hang nong, bang cong, thanh cong
dang cong » dung cong
dan thai » dang thai, dan thi, dan than
thai cao » tai cao, thoai cac, thuat cao

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 - hanh trung tuan ((nhung cong) or (((hang cong) OR (dang cong)))) dan thai cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu sach - hanh trung tuan ((nhung cong) OR (((hang cong) OR (dang cong)))) dan thai cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu sach - hanh trung tuan ((nhung cong) or (((hang cong) OR (dang cong)))) dan thai cao".
• Adding a wildcard symbol may retrieve word variants: hoc thieu sach - hanh trung tuan ((nhung cong) or (((hang cong) OR (dang cong)))) dan thai cao*.