Perhaps you should try some spelling variations:
thuc day » thuc dan, thuc vat
tu sach » thu sach, su sach, te sach
danh te » danh tu, danh het, danh yen
thuc va » thuc vat, thuc dan
ve phap » va phap, de phap, ve phan
hieu ve » hieu va, hieu van
nang xa » nang x, lang xa, nang ma
ty nang » ky nang, ty xang, ty hang
so sach » so sanh, bo sach, co sach
te cua » tue cua, le cua, de cua
cua te » cua tu

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) or (so sach)) ty nang xa hoi. hieu ve phap ((thuc va) OR (thuc day)) danh te cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (so sach)) ty nang xa hoi. hieu ve phap ((thuc va) OR (thuc day)) danh te cua te*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sach) or (so sach)) ty nang xa hoi. hieu ve phap ((thuc va) OR (thuc day)) danh te cua te*".