Perhaps you should try some spelling variations:
thuat sach » thuat lanh, thuat san
phat xuong » phan xuong, chat luong, khac xuong
nham phat » nha phat, phap phat, kham pha
xuong may » cuong ma, xuong nau, duong ma
kien hoa » dien hoa, tien hoa, kien ha
anh nham » lanh nham, anh nhan, anh nam
may minh » may tinh, mai minh, van minh
hoa anh » hoa danh, hoa lanh, ha anh

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

• Performing a fuzzy search may retrieve terms with similar spellings: thuat sach ((tin hoc) or (sinh hoc)) chuyen đe ky thuat: kien hoa anh nham phat xuong may minh~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuat sach ((tin hoc) OR (sinh hoc)) chuyen đe ky thuat: kien hoa anh nham phat xuong may minh.
• Adding a wildcard symbol may retrieve word variants: thuat sach ((tin hoc) or (sinh hoc)) chuyen đe ky thuat: kien hoa anh nham phat xuong may minh*.