Perhaps you should try some spelling variations:
sach tranh » canh tranh
hong thai » cong thai, hong ha, hinh thai
dung hoai » dung hai, dang hoai, dung hoa
hoa thai » hoa phan, hoa chat, hoa dai
hoai khi » doi khi, hoai thu, hoai bui
te sach » toc sach
bo sach » co sach, hoc 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 tranh ((hoa thai) or (hong thai)) đong luc ) or ( bo sach dung hoai khi đong luc ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( te sach tranh ((hoa thai) OR (hong thai)) đong luc ) OR ( bo sach dung hoai khi đong luc )).
• Adding a wildcard symbol may retrieve word variants: (( te sach tranh ((hoa thai) or (hong thai)) đong luc ) or ( bo sach dung hoai khi đong luc ))*.