Perhaps you should try some spelling variations:
thanh tai » thanh hai, thanh toan, doanh tai
cau theo » cau thi, cau tao
thi hanh » thi thanh
va thanh » gia thanh, ban thanh, va tinh
tai cau » tai cac, tai cao
tu sach » thu sach, su sach, te sach
lu hanh » luu hanh, du hanh, ly hanh
ve cac » va cac, vien cac
va cam » va cham, va cac, va cao

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach ((thi hanh) or (lu hanh)) xa hoi. hieu ((va cam) or (ve cac)) duc va thanh tai cau theo~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ((thi hanh) OR (lu hanh)) xa hoi. hieu ((va cam) OR (ve cac)) duc va thanh tai cau theo.
• Adding a wildcard symbol may retrieve word variants: tu sach ((thi hanh) or (lu hanh)) xa hoi. hieu ((va cam) or (ve cac)) duc va thanh tai cau theo*.