Perhaps you should try some spelling variations:
qua phan » cua phan, qua than, quang phan
thuc dan » thuc hanh, hoc dan, thuc vat
hanh dao » lanh dao, thanh dat, thanh dam
te sach » toc sach
thuc va » thuc vat, thuc day
dao cua » dai cua, day cua, dan cua
ang xa » lang xa, mang xa, dang xay
tuc va » truc va, tuc xa, duc va
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: te sach y ang xa hoi. hieu qua phan ((tuc va) or (((thuc va) OR (thuc dan)))) hanh dao cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach y ang xa hoi. hieu qua phan ((tuc va) OR (((thuc va) OR (thuc dan)))) hanh dao cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach y ang xa hoi. hieu qua phan ((tuc va) or (((thuc va) OR (thuc dan)))) hanh dao cua te".
• Adding a wildcard symbol may retrieve word variants: te sach y ang xa hoi. hieu qua phan ((tuc va) or (((thuc va) OR (thuc dan)))) hanh dao cua te*.