Perhaps you should try some spelling variations:
ngang phoi » ngang cho, ngang tho, ngung pho
sach ngang » sach nang, sach ngan, sach ngon
hoc sach » hoc sinh, hoc cac, hoc anh
phoi khi » phai khi, phoi thai, doi khi
su sach » so sach
vu sach » vu bach, vu khach
ngan co » nganh co, ngon co, nhan co

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( ((su sach) or (vu sach)) ngan co khi đong luc ) or ( hoc sach ngang phoi khi đong luc ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( ((su sach) OR (vu sach)) ngan co khi đong luc ) OR ( hoc sach ngang phoi khi đong luc )).
• Adding a wildcard symbol may retrieve word variants: (( ((su sach) or (vu sach)) ngan co khi đong luc ) or ( hoc sach ngang phoi khi đong luc ))*.