Perhaps you should try some spelling variations:
phuong thao » phuong phap, phuong thuc
cong phuong » cong thuong, cong huong, dong phuong
chieu tinh » trieu tinh, lieu tinh, chau tinh
hanh thong » anh thong, hanh trong, hang thong
toc chieu » toc thieu, doc hieu, hoc thieu
thong thu » thong thuy, thong tu, trong thu
phan lapi » phan loai, phan tap, phan lan
phan lap » phan dau

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

• Performing a fuzzy search may retrieve terms with similar spellings: toc chieu tinh - hanh thong thu cong phuong thao ((phan lap) or (phan lapi))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc chieu tinh - hanh thong thu cong phuong thao ((phan lap) OR (phan lapi)).
• Adding a wildcard symbol may retrieve word variants: toc chieu tinh - hanh thong thu cong phuong thao ((phan lap) or (phan lapi))*.