Perhaps you should try some spelling variations:
sach thue » sach thu, sach thieu, sach tham
thue dang » thu dang, thuoc dang, thien dang
hanh tai » thanh tai, hang tai, han tai
vu sach » vu bach, su sach, vu khach
dang xa » dang xay, lang xa, dang ha
hieu ve » hieu va, hieu van
ve pham » vi pham, v pham, ve phan
duc van » duc va, duc manh, duc phan
cua tu » cua tuc, cua su, cua cu

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

• Performing a fuzzy search may retrieve terms with similar spellings: vu sach thue dang xa hoi. hieu ve pham ((duc van) or (duc tan)) hanh tai ((cua te) or (cua tu))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sach thue dang xa hoi. hieu ve pham ((duc van) OR (duc tan)) hanh tai ((cua te) OR (cua tu)).
• Adding a wildcard symbol may retrieve word variants: vu sach thue dang xa hoi. hieu ve pham ((duc van) or (duc tan)) hanh tai ((cua te) or (cua tu))*.