Perhaps you should try some spelling variations:
thuoc sach » hoc sach, thuat sach, thuoc sinh
nganh cong » nhanh chong, thanh cong
nuoc sach » nguoi sach, hoc sach, cuoc cach
he nhung » hee nhung, ve nhung, me nhung
dieu con » dieu can, diet con, lieu cong
cong he » cong che, cong ha, cong de
dieu co » lieu co, deu co, dien co
thong » trong

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((thuoc sach) or (nuoc sach)) nganh cong he nhung ((dieu co) OR (dieu con)) truyen thong~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((thuoc sach) OR (nuoc sach)) nganh cong he nhung ((dieu co) OR (dieu con)) truyen thong.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((thuoc sach) or (nuoc sach)) nganh cong he nhung ((dieu co) OR (dieu con)) truyen thong".
• Adding a wildcard symbol may retrieve word variants: ((thuoc sach) or (nuoc sach)) nganh cong he nhung ((dieu co) OR (dieu con)) truyen thong*.