Perhaps you should try some spelling variations:
khoang minh » hoang minh, khong minh, thong minh
tai khoang » tao khoang, tai khoan, dai khoang
cong minh » cong vinh, cong tinh, song minh
sach phat » sach nha, sach tham, cach pha
hoach va » hoach xay, hanh va, doanh va
giai cau » giai mau, giai ca, giai cac
cau cong » cac cong, cuu cong, cao cong
giai tai » giai bai, gia tai, gioi tai
de giai » dan giai, kem giai
tu sach » thu sach, su sach, te sach
phat ve » nhat ve, phat vi, pha ve
ve giai » va giai, ve giao, kem giai
va de » va do, va le

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( thu hoach va de giai cau cong minh ) or ( tu sach phat ve giai tai khoang minh ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( thu hoach va de giai cau cong minh ) OR ( tu sach phat ve giai tai khoang minh )).
• Adding a wildcard symbol may retrieve word variants: (( thu hoach va de giai cau cong minh ) or ( tu sach phat ve giai tai khoang minh ))*.