Perhaps you should try some spelling variations:
thieu hach » thien hach, chieu sach, hieu cach
phan xuong » phan cong
dung thang » hung thang, cung thang, dung thuong
hoc thieu » toc thieu, hoc hien
dong phan » dung phan, cong phan, dong chan
dang toan » dang tran, dan toan, dung toan
anh dong » anh huong, anh son
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 hach - anh dong phan xuong ((dang toan) or (dung thang)) phan lap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu hach - anh dong phan xuong ((dang toan) OR (dung thang)) phan lap.
• Adding a wildcard symbol may retrieve word variants: hoc thieu hach - anh dong phan xuong ((dang toan) or (dung thang)) phan lap*.