Perhaps you should try some spelling variations:
nhan trong » nhuan trong, nhat trong, nhin trong
nganh cong » nhanh chong, thanh cong
cac nganh » hoc nganh
sach nhan » sach nha, sach han, sach ngan
trong khi » trong thi, trong khu, trong thoi
cong khi » cong thai, khong khi, co khi
toc sach » hoc sach, doc sach, thuoc sach
te cac » tu cac, ve cac, te cao

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( te cac nganh cong khi đong luc ) or ( toc sach nhan trong khi đong luc ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( te cac nganh cong khi đong luc ) OR ( toc sach nhan trong khi đong luc ))*.