Perhaps you should try some spelling variations:
sach trien » sach tien, sach tren, sach thieu
trien hoat » tien hoa
hoat huyen » hoa huyen, dat huyen, hoi huyen
khoa phau » hoa phan, khoa kham, khoa than
phau cung » phan cung, pha cung, phap cung
qua trinh » qua kinh
thu sach » tu sach, thuat sach, thuoc sach
thuc dac » thuoc dac, thuc day, thu dac
thuc dan » thuc hanh, hoc dan, thuc vat
cung qua » cung cua, cung quy, dung qua

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

• Performing a fuzzy search may retrieve terms with similar spellings: thu sach trien hoat huyen đe ky thuat: kien ((thuc dac) OR (thuc dan)) khoa phau cung qua trinh~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sach trien hoat huyen đe ky thuat: kien ((thuc dac) OR (thuc dan)) khoa phau cung qua trinh".
• Adding a wildcard symbol may retrieve word variants: thu sach trien hoat huyen đe ky thuat: kien ((thuc dac) OR (thuc dan)) khoa phau cung qua trinh*.