Perhaps you should try some spelling variations:
thuc day » thuc dan, thuc vat
cam thuc » am thuc, nam thuc, cam thu
day hanh » day nhanh, day thanh, dao hanh
cuu tre » cau tren, cau treo
cua tre » cua triet, dua tren, cua thep
hanh va » hang va, hanh vi
su sach » so sach, vu sach
sach ty » sach y, sach tu, sach thu
hieu ve » hieu va, hieu van
nang xa » nang x, lang xa, nang ma
ty nang » ky nang, ty xang, ty hang
ve cam » ve cham, ve cac, va cam
cua te » cua tu

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 ty nang xa hoi. hieu ve cam thuc day hanh va ((((cua tre) OR (cuu tre))) or (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ty nang xa hoi. hieu ve cam thuc day hanh va ((((cua tre) OR (cuu tre))) OR (cua te))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ty nang xa hoi. hieu ve cam thuc day hanh va ((((cua tre) OR (cuu tre))) or (cua te))*".