Perhaps you should try some spelling variations:
thuc dan » thuc hanh, hoc dan, thuc vat
sach ty » sach y, sach tu, sach thu
hanh hu » hanh khu, hanh nhu, hanh tu
thuc va » thuc vat, thuc day
su sach » so sach, vu sach
ve phap » va phap, ve phan, ve phat
nang xa » nang x, lang xa, nang ma
ty nang » ky nang, ty xang, ty hang
hu cua » tu cua, vu cua
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 phap) OR (de phap)) ((thuc va) or (thuc dan)) hanh hu cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ty nang xa hoi. hieu ((ve phap) OR (de phap)) ((thuc va) OR (thuc dan)) hanh hu cua te*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ty nang xa hoi. hieu ((ve phap) OR (de phap)) ((thuc va) or (thuc dan)) hanh hu cua te*".