Perhaps you should try some spelling variations:
thieu hang » thieu khang, thieu quang, thi hang
tham thuc » nham thuc, pham thuc, tam thuc
cua triet » cua viet, su triet, va triet
thuc dan » thuc hanh, hoc dan, thuc vat
hanh tai » thanh tai, hang tai, hinh tai
tu sach » thu sach, su sach, te sach
hang xa » hoang xa, hang va, hang ca
hieu va » lieu va, hieu qua
va tham » van tham, va cham, va thanh
han tai » hang tai, nhan tai, van tai

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach thieu hang xa hoi. hieu va tham thuc dan ((hanh tai) or (han tai)) cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach thieu hang xa hoi. hieu va tham thuc dan ((hanh tai) OR (han tai)) cua triet.
• Adding a wildcard symbol may retrieve word variants: tu sach thieu hang xa hoi. hieu va tham thuc dan ((hanh tai) or (han tai)) cua triet*.