Perhaps you should try some spelling variations:
thieu sach » chieu sach, hieu cach, theo sach
thien hach » thien thanh, hien hanh
hanh trung » thanh trung, hanh trang, danh trung
manh trung » manh tung, thanh trung, manh hung
nhung cong » dung cong, thong cong, hang cong
cap nhung » cam nhung, vap nhung, dap nhung
cong tan » cong tac, cong san, cong thanh
tan nhan » tran nhan, tao nhan, van nhan
nhan cap » khan cap, than cap, nhan cach

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