Perhaps you should try some spelling variations:
nhanh dong » hanh dong, nhanh chong, anh dong
thai nhung » thi nhung, tham nhung, thai vung
nhung cong » dung cong, thong cong, hang cong
dong thai » duong thai, dong tai, cong thai
chu sach » cau sach, chieu sach, chuc hach
thu sach » tu sach, thuat sach, thuoc sach

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((chu sach) OR (thu sach)) - nhanh dong thai nhung cong ((tinh toan) or (anh tuan)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chu sach) OR (thu sach)) - nhanh dong thai nhung cong ((tinh toan) OR (anh tuan)) cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chu sach) OR (thu sach)) - nhanh dong thai nhung cong ((tinh toan) or (anh tuan)) cau".
• Adding a wildcard symbol may retrieve word variants: theo ((chu sach) OR (thu sach)) - nhanh dong thai nhung cong ((tinh toan) or (anh tuan)) cau*.