Perhaps you should try some spelling variations:
thien van » thi van
phan thuc » nhan thuc, pham thuc, phan khuc
phap thuc » phap thu, phap hoc, phap tu
sinh dai » sinh thai, si dai, sinh vat
nang ma » tang ma, sang ma, nang cao
va sinh » va kinh, va tinh, vi sinh
cua tre » cua te, cuu tre, cua triet
sinh y » sinh ly
y nang » ky nang, ly nang, v nang
ma hoi » mai hoi, xa hoi, ma hoa

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc sinh y nang ma hoi. thien van ((phan thuc) or (phap thuc)) va sinh dai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc sinh y nang ma hoi. thien van ((phan thuc) OR (phap thuc)) va sinh dai cua tre.
• Adding a wildcard symbol may retrieve word variants: hoc sinh y nang ma hoi. thien van ((phan thuc) or (phap thuc)) va sinh dai cua tre*.