Perhaps you should try some spelling variations:
gat thanh » dat thanh, tat thanh, vat thanh
nam thuc » nam thuoc, am thuc, nam thu
thuc gat » thuc vat, thuc giai, thuc hoat
doi cua » dai cua, hoi cua
nang ho » nang hoc, nang co, tang ho
hieu ve » hieu va, hieu van
vu sai » vu hai, vu dai, vu tai
di cua » dai cua, de cua, do cua
ve nam » he nam, va nam, le nam
ho hoi » hoc hoi, hoa hoi, hoi hoi
vu san » va san, vu ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((vu sai) or (vu san)) ky nang ho hoi. hieu ve nam thuc gat thanh ((di cua) or (doi cua)) te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((vu sai) OR (vu san)) ky nang ho hoi. hieu ve nam thuc gat thanh ((di cua) OR (doi cua)) te.
• Adding a wildcard symbol may retrieve word variants: ((vu sai) or (vu san)) ky nang ho hoi. hieu ve nam thuc gat thanh ((di cua) or (doi cua)) te*.