Perhaps you should try some spelling variations:
thuat sach » thuat lanh, thuat san
phan cong » thanh cong
cong phat » cong nhat, cong chat, cong phan
phat tinh » phap tinh, phat minh, pha tinh
tren hoc » truyen hoc, trung hoc, tren thuc
nha phan » nha phat, phap phan, nghe phan
te sach » toc sach

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 ((tren hoc) OR (triet hoc)) chuyen đe ky thuat: thien thuat sach nha phan cong phat tinh~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ((tren hoc) OR (triet hoc)) chuyen đe ky thuat: thien thuat sach nha phan cong phat tinh".
• Adding a wildcard symbol may retrieve word variants: te sach ((tren hoc) OR (triet hoc)) chuyen đe ky thuat: thien thuat sach nha phan cong phat tinh*.