Perhaps you should try some spelling variations:
xach tay » canh tay
vat dung » van dung, va dung, viet dung
dung doi » huong doi, dung tai, dung co
nang xa » nang x, lang xa, nang ma
qua nam » quan nam, quang nam, qua nhat
cua nam » cua tam, cua ngan, cua nhan
doi cua » dai cua, hoi cua
cua tre » cua te, cuu tre, cua triet

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

• Performing a fuzzy search may retrieve terms with similar spellings: su ((xach tay) or (sach y)) nang xa hoi. hieu ((qua nam) OR (cua nam)) thuc vat dung doi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su ((xach tay) OR (sach y)) nang xa hoi. hieu ((qua nam) OR (cua nam)) thuc vat dung doi cua tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su ((xach tay) or (sach y)) nang xa hoi. hieu ((qua nam) OR (cua nam)) thuc vat dung doi cua tre*".