Perhaps you should try some spelling variations:
nhanh mang » nhanh lang, hanh mang, nhanh quang
hieu manh » chieu xanh, hieu nganh, dieu hanh
lieu tinh » trieu tinh, diep tinh, bien tinh
bang cong » dang cong, bang song, hang cong
cong dan » cong san, cong tan, huong dan
toan tai » toan tap, doanh tai, toan ban
toan cao » toan ban, toan tap
mang va » mang vua, hang va, bang va
va bang » va nang, va lang, va ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((hieu manh) or (lieu tinh)) - nhanh mang va bang cong dan ((toan tai) or (toan cao))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((hieu manh) OR (lieu tinh)) - nhanh mang va bang cong dan ((toan tai) OR (toan cao)).
• Adding a wildcard symbol may retrieve word variants: theo ((hieu manh) or (lieu tinh)) - nhanh mang va bang cong dan ((toan tai) or (toan cao))*.