Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
kho tang » cao tang
hanh dai » hanh tai, hanh dao, vanh dai
dan hanh » dang hanh, dan khanh, dan thanh
thuc dan » thuc hanh, hoc dan, thuc vat
nam thuc » nam thuoc, am thuc, nam thu
hieu ve » hieu va, hieu van
hoa doi » hoa dai, hoc doi, xoa doi
sac kho » suc khoe, cac khoi, dac khoa
hoa hoi » khoa hoi, hoc hoi, hoa moi
ve nam » he nam, va nam, le nam
te sac » te sach, te cac, te san

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sac kho tang ((((hoa hoi) or (hoa hoc))) or (hoa doi)). hieu ve nam thuc dan hanh dai cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sac kho tang ((((hoa hoi) OR (hoa hoc))) OR (hoa doi)). hieu ve nam thuc dan hanh dai cua triet.
• Adding a wildcard symbol may retrieve word variants: te sac kho tang ((((hoa hoi) or (hoa hoc))) or (hoa doi)). hieu ve nam thuc dan hanh dai cua triet*.